Frequently Asked Questions
Replace if it is bent, cracked, leaking at joints, has damaged threads or quick‑connects, or if its pressure/temperature rating is below your machine’s requirements.
Yes, if the wand and its fittings are rated for your system’s temperature. Always confirm the maximum temperature rating before use.
Short (12–18 in) for tight spaces; medium (24–36 in) for general cleaning; longer (40–60+ in) for extra reach. Pick the longest length you can handle safely and steadily.
Match the thread type and size (for example M22‑14 vs. M22‑15 or 1/4 in NPT) or the quick‑connect size and style. When uncertain, measure and bring details to our team.
Most pair with M22 or NPT threads at the gun end or use quick‑connects. The nozzle end is typically a 1/4 in quick‑connect for spray tips.
A standard wand is a fixed-length, straight lance for everyday work at ground level. A telescoping wand extends several feet for high or distant targets without ladders.
Replace when the spray fan becomes uneven, you notice a pressure drop with a known‑good pump and hose, or the QC plug shows wear that prevents a secure lock.
Yes—if the nozzle is rated for the temperature of your unit. Check the manufacturer’s maximum temperature spec before use with hot water.
Larger orifice numbers reduce pressure at a given flow; smaller orifices increase pressure. Size within the pump’s safe operating range.
Start with a wider pattern, typically the white 40° tip, then narrow as needed. Avoid beginning with a 0° red tip on unfamiliar or delicate materials.
Match orifice size to your washer’s flow (GPM) and the working pressure you want. The standard nozzle “number” is based on GPM at 4000 PSI; choose the nearest size that yields your target PSI at your flow.
Most spray tips for guns and wands use a 1/4 in quick‑connect plug. Always confirm the coupler on your wand/lance before ordering, as other QC sizes (3/8 in, 1/2 in) are used elsewhere in the high‑pressure system.
Check hinge hardware and the hold-open device at every scheduled hood and duct cleaning, and after severe weather or noticeable vibration.
Yes. The wiring must accommodate full fan tilt without strain. Use weatherproof flexible conduit or cable with a service loop.
Many kits are designed to fit common upblast fan bases. Verify bolt patterns and provide photos or a model tag to confirm compatibility before ordering.
Measure the fan base and curb, check clearances, and consider the overall weight of the fan assembly. When in doubt, select a heavy-duty hinge and verify fit with photos and measurements.
Yes. A listed service hold-open keeps the fan secure while open and is part of the upblast fan service/cleaning requirements in NFPA 96.
Most jurisdictions that adopt NFPA 96 require upblast kitchen exhaust fans to be hinged so they can be safely opened for inspection and cleaning. Always confirm local code adoption and any AHJ requirements.
Rinse with fresh water after each use, keep strainers clean, inspect hoses and seals, and rebuild metering valves as recommended by the component manufacturer.
Not usually. A proportioner supplies mixed solution to your soft‑wash pump directly. Some rigs keep a downstream injector for high‑reach bleach application on separate pressure‑wash tasks.
Start with low SH valve settings and increase gradually while testing on a small area until organic growth clears predictably. Record the valve positions that produce your target result for repeat use.
Use chemical‑ready wetted parts such as PVDF/Kynar, Schedule 80 PVC, or polypropylene with compatible elastomers (e.g., Viton or EPDM). Avoid brass and aluminum in the SH path; stainless may require careful rinsing depending on conditions.
Yes. Choose a manifold sized for your pump’s working flow (GPM) and plumbing. Undersized manifolds can starve the pump; oversized components can be harder to meter accurately.
A proportioner meters SH, water, and surfactant from separate tanks and blends them on‑demand, so you set the nozzle strength with valves instead of premixing a tank. It speeds changeovers and reduces leftover chemical.
Protect from freezing, relieve hose tension on the reel, drain water lines, and store equipment clean and dry. Follow your machine’s manual for fuel and pump protection steps.
Verify load rating, stem or plate compatibility, deck thickness, wheel material for your floor, and that brakes won’t interfere with frame geometry or access points.
Choose a pivot when the hose needs to feed in different directions—such as from a truck bed to curb or sidewalk—to reduce drag and kinks. Fixed reels suit straight pull paths and tight spaces.
Often yes. Use a compatible mounting plate or bracket and confirm the bolt pattern, clearance, and balance so the cart still tilts and rolls safely.
Match the reel’s rated capacity to your hose diameter and total length, and ensure the working pressure rating meets or exceeds your system. Leave headroom for leader hose and fittings.
Pneumatic (air-filled) wheels cushion bumps and roll more easily over rough ground. Flat-free wheels resist punctures and need less maintenance, making them a good fit for smooth floors, trailers, and controlled routes.
Add a side handle and molded or vented grip, choose the lightest length that still reaches, and keep nozzle sizing correct to avoid excess recoil.
Yes—when operated within their stated PSI and temperature limits. Adjust bend only as designed, inspect often for fatigue, and avoid close‑range use of zero‑degree tips.
Many lances use 1/4″ NPT male threads on both ends. The nozzle end commonly uses a 1/4″ quick‑connect coupler. M22 connections are common on hoses/guns; adapters are available—verify before ordering.
When you need quick switching between low‑pressure soap application and high‑pressure rinse on a downstream‑injector setup—without changing nozzles.
Only if its temperature rating supports your operating temperature. Many hot‑water‑rated lances list maximums near 300°F; some products are lower around 210–220°F—always check the product spec.
Use the shortest length that provides safe reach and a good working angle. Short (12–24 in.) favors tight control; 36–48 in. reduces bending for flatwork; longer assemblies increase reach for tall vehicles or siding.
Yes. In industry use, “lance” and “wand” refer to the same part: the rigid tube between the spray gun and the nozzle.
Snug, then small additional turns until sealed and aligned. Avoid over-tightening, which can crack ports. Follow the product’s torque guidance when provided.
Use sealant on tapered threads like NPT/BSPT. Do not add tape to gasketed or O-ring face seals—those seal at the face, not the threads.
Any turn adds minor restriction. Choose the largest practical size and fewest turns, and prefer 45° where layout allows to minimize losses.
Brass suits most water-based use. Stainless is best where corrosion or chemicals are present. Zinc-plated/carbon steel is strong but needs protection from moisture. Poly/composite is for low-pressure chemical lines only.
No. BSP and NPT have different thread forms and pitch. They are not directly compatible—use a purpose-made adapter to transition safely.
A street elbow has one male and one female thread, letting you connect directly to a port without an extra nipple. It saves space in cramped layouts.
A 90° elbow makes a tight right-angle turn; a 45° elbow makes a gentler turn with less turbulence. Use 90° in tight spaces and 45° where a smoother flow path is preferred.
Most home washing uses cold water, but hot water can improve degreasing of oil or heavy grime on concrete if your pressure washer supports it.
Yes. Verify the detergent is injector-safe, calibrate your draw rate if needed, and flush your system with clean water after use.
Use a specialty rust or mineral stain remover (acidic). Spot-apply, monitor dwell closely, and rinse well. Avoid acid-sensitive stone and always test in an inconspicuous area first.
Pre-treat with an alkaline or citrus degreaser, allow dwell, agitate if needed, and rinse thoroughly. Heavier grease may require repeated applications or elevated water temperature if your equipment allows.
Use an oxygenated or alkaline wood cleaner, then apply a compatible wood brightener/neutralizer. Work with the lowest effective pressure and rinse gently to avoid raising grain.
Protect landscaping by pre-wetting foliage and soil, minimizing overspray, and rinsing plants during and after cleaning. Follow the product label and never mix bleach with acids or ammonia.
Choose a house-wash detergent compatible with sodium hypochlorite and surfactants. Apply with low pressure, allow dwell without drying, then rinse thoroughly. Test first on oxidized paint.
Larger bores (e.g., 3/8″) can reduce restriction on higher‑flow systems. Match the QC size to your hose ID, pump flow, and component ratings for best performance.
Use sealant on tapered threads like NPT. For BSPP (parallel) connections, sealing is achieved with a washer or O‑ring as specified. Do not apply sealant to the QC plug/coupler interface.
Common causes include a worn or missing O‑ring, debris in the coupler, mismatched QC body sizes, or a thread standard mismatch (e.g., NPT vs BSP). Inspect, clean, and verify specs.
Brass is cost‑effective and widely used. Stainless steel offers higher corrosion resistance and durability, which is helpful in harsh or constantly wet environments.
No—these thread forms differ in angle and sealing method. They may start to engage but typically leak under pressure. Use adapters designed to convert between standards.
Measure the internal diameter of the female seat or the male stem. M22-14 uses a 14 mm seat/stem; M22-15 uses 15 mm. Mixing them threads together but will not seal reliably.
1/4″, 3/8″, and 1/2″ body sizes are the most common. Many nozzle and lance connections use 1/4″, while hose and gun connections are often 3/8″. Always verify on your specific machine.
Keep the hose clean, avoid dragging across sharp edges, and route it with rollers or a reel. A light‑colored, smooth, non‑marking cover also helps minimize transfer on sensitive finishes.
No. Choose ends that match your equipment—common styles are 3/8-inch quick‑connect, 3/8-inch NPT, and M22 threads. Use adapters or swivels only as needed.
They are popular when you want strong reinforcement with lighter weight and high flexibility. Compare weight, handling, and cost to steel‑wire braided options for your workflow.
Yes—if the hose is hot‑water rated. Verify the maximum temperature on the product page and choose a hose built for your operating conditions.
Match diameter to your machine and run length. Many pros use 3/8-inch for general work; 1/4-inch can feel lighter on smaller machines; 1/2-inch can help with high‑flow or very long runs.
No. The cover’s job is surface protection and abrasion resistance. Pressure, flow, and temperature capability come from the hose’s tube and reinforcement—always check the stated ratings.
A non‑marking hose uses a specialized outer cover designed to minimize visible scuffs and color transfer on light or finished surfaces during normal use.
There’s no universal interval. Replace if damaged, unreadable, or out of tolerance for your needs. For critical measurements, verify against a reference on a schedule that matches your quality or safety requirements.
Use a compound or vacuum gauge on the pump inlet while the machine is flowing water. Increasing vacuum (higher inHg) under load points to supply or filtration restrictions to correct.
Pressure washer gauges commonly use NPT threads in either bottom or back mounts, but sizes vary. Confirm the port on your pump, unloader, or manifold before ordering.
Many technicians install a test gauge between the hose and gun so the reading includes line and fitting losses. Always depressurize before installing, and make adjustments with proper PPE.
Liquid-filled gauges are popular where vibration and pulsation make needles hard to read. Dry gauges are fine in stable, low‑vibration environments or when a fill is not desired. Choose based on readability and conditions.
Pick a range that sits comfortably above your normal operating pressure so the pointer isn’t near the top of the scale during use. This improves readability and helps the gauge tolerate brief spikes. Always match the gauge to your pump and unloader specifications.
Avoid it. Heat shortens dwell time and increases the risk of drying, spotting, or uneven results. Work in shade when possible.
Rub the surface with a finger or cloth. A chalky white residue indicates oxidation and the need for a dedicated gutter detergent.
Yes when used as directed: work in shade, pre‑wet and post‑rinse plants, do not let product dry, and always test a small area first.
Start with it to remove loose soil. If streaks remain, switch to a specialty gutter brightener or oxidation remover as directed by the label.
Usually not. Streaks are bonded to an oxidized surface, so results come from the right detergent, short dwell time, light agitation, and a thorough low‑pressure rinse.
Use chemical‑resistant gloves and eye protection at a minimum, and follow each product’s SDS for any additional PPE or ventilation requirements.
Degreasers break down oils and fats; they don’t remove metal oxidation or rust. Use the appropriate brightener or oxidation remover as directed for that task.
Venturi injectors struggle with viscous products and require a low‑pressure tip. Thin per label directions or apply with a foamer or pump‑up sprayer, then rinse.
Many high‑pH cleaners can dull or etch bare aluminum. Use a product labeled aluminum‑safe, keep dwell times short, and pre‑test in an inconspicuous area.
Heat softens oils and fats and often reduces dwell time. If you only have cold water, choose a strong surfactant blend and allow more dwell—always within the product’s label limits.
Begin with the lightest dilution on the label for your soil type. Increase strength only as needed, keep the surface wet during dwell, and rinse thoroughly.
It’s usually not recommended. Many solvent formulas are flammable and can damage seals or heater coils. Apply as a low-pressure pre-spray and rinse with your washer unless your equipment manual and the product label explicitly allow injection.
Confirm glass type and any coatings first. Use appropriate blades, correct angle, and light pressure. Test in a small area before proceeding to avoid damage.
Track output water quality with a meter. When readings rise or results decline, follow your system’s instructions to change resin or filters to restore spot-free performance.
Yes. Squeegees, sleeves, and detailing towels remain the go-to for interiors, small panes, and touch-ups where water-fed tools are impractical.
Use softer bristles for delicate glass and frames. Pencil jets focus agitation on heavy soils; fan jets spread water for faster rinsing. Many crews carry both and swap as needed.
Aluminum is economical, fiberglass is non-conductive and durable, and carbon fiber offers the best stiffness-to-weight for high-reach work. Pick based on your required working height and budget.
DI-only systems are simple and effective when incoming water has relatively low mineral content or for short, occasional use. RO/DI is preferred for a wider range of water conditions and longer run times because it handles higher mineral loads more efficiently before final polishing with DI.
Check for air leaks or restrictions on the suction line, clean or replace the strainer, verify the injector is correctly sized, and confirm the metering valve is open and oriented properly.
Yes—verify the injector’s temperature rating and seal material, and ensure your detergent is approved for the operating temperature of your unit.
Many users find that accurate metering before the pump helps control and often reduce detergent consumption compared with inconsistent mixes. Results depend on your setup and technique.
Match injector flow rating to your machine’s GPM and ensure the pressure rating meets or exceeds your PSI. Undersizing can restrict flow; oversizing can reduce draw stability.
As a general rule, do not run strong sodium hypochlorite, acids, or other corrosives through the pump. Use pump-safe detergents only and follow the chemical supplier’s guidance.
Choose upstream when you want fast changeover at the machine, consistent metering, or when using a hot-water unit that benefits from pre-pump chemical mixing. If you routinely apply harsh or highly corrosive chemicals, a downstream setup is usually safer for equipment.
It meters detergent into the water stream before the pump. The mixed solution then passes through the pump (and heater coil on hot-water units), delivering a consistent, controllable mix at the nozzle.
No. Use dedicated detergent/chemical tanks and separate pickup lines to avoid cross‑contamination and simplify maintenance.
Yes—use adequate tank capacity and give each pump its own inlet line from the tank. Keep returns diffused and away from the suction pickups to limit aeration.
Use flexible hose at least one size larger than the pump inlet, keep the run short and straight, and include an inlet strainer. Avoid tight 90° elbows and unnecessary reducers.
Returning bypass to the tank helps manage heat and aeration. If your setup returns bypass to the pump inlet, add a thermal relief valve and avoid extended idling in bypass.
