EFF-OFF Calcium & Efflorescence Remover for Pressure Washing
- Trusted by Pros and DIYers Nationwide
$14.47 - $258.47
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Product Information
EFF-OFF was developed to get those hard water mineral deposits the EFF-OFF! Delux’s proprietary formula for EFF-OFF is a powerful calcium and efflorescence remover designed by the pros at PowerWash.com to remove tough buildups and deposits. A unique feature of EFF-OFF is that it reacts instantly by foaming as a visual sign that it is working. As with all DELUX products this is developed for professional to get the job done efficiently and effectively.
Product Details
Description
Remove calcium and efflorescence from hard surfaces where typically hard water exposure leads to unwanted build-up. Once diluted EFF-OFF can be applied directly to a wet surface and the foaming action will go to work on the build-up. Factors such as outside air temperature, moisture, the severity of the build-up, and surface quality can affect the results. Best used during dry conditions at comfortable temperatures.
Mixing Directions:
Measure 40 to 80 ounces per 5 gallons of water. Desired strength of EFF-OFF will be determined by what is to be cleaned and is at the sole discretion of the contractor. Example: For cleaning a brick wall with medium calcium stains. Add EFF-OFF at 40 to 80 ounces per 5 gallons of water.
Shipping & Delivery
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Fast nationwide shipping via UPS
Most orders arrive within 5–10 business days. -
Direct-from-manufacturer items may take up to 14 business days
If a product will take longer than expected, a PowerWash.com account executive will contact you. -
Backorder notifications
If an item becomes unavailable or delayed, our team will notify you immediately with options. -
Freight delivery for large equipment
Oversized items ship by truck freight. Lift-gate service is available if needed. -
Alaska & Hawaii shipping
Delivery to AK/HI may take up to 30 business days. (Some chemical products cannot ship to AK/HI.) -
International shipping available
We ship to most countries worldwide. Call 1-800-433-2113 for rates. -
Order minimum
Orders under $15 may incur a minimum order fee. -
Track your order anytime
You can check your order status using the Orders & Returns page.
Returns & Warranty
30-Day Return Window (Unused Items)
Unused products in original packaging can be returned within 30 days of delivery.
Simple Return Process
Just contact our team to receive an RMA (Return Authorization) before sending anything back.
Restocking Fee
Returns may be subject to a 20% restocking fee.
Non-Returnable Items
Due to safety and usage factors, the following items cannot be returned:
– Pressure washers (covered under warranty only)
– Chemicals / hazmat products
– Custom or special-order equipment
Manufacturer Warranties Apply
Many products are backed by manufacturer warranties (pumps, engines, accessories, etc.).
Coverage varies by brand and product type.
Defective or Damaged Items
If something arrives damaged or defective, contact us immediately so we can make it right.
Support
Support & Questions
Talk to a real pressure washing expert
Our team helps contractors choose the right equipment, chemicals, and setup.
Need help before ordering?
We can help you confirm:
– Proper sizing (GPM, PSI, fittings)
– Product compatibility
– Best setup for your job
Support after purchase
We’re here to help with setup, usage, and troubleshooting.
Call or speak with our team
1-800-433-2113
Fast response from experienced staff
No call centers — you’ll speak with someone who understands the equipment.
Get It Right The First Time
No guesswork. No wrong orders.
- Fast Shipping
- Contractor Support
- Financing Available
Reviews
Frequently Asked Questions
Eff-Off (efflorescence and calcium remover) is generally safe on colored or decorative concrete, but we always recommend spot testing in a small area first. Some sensitive or sealed surfaces may react to cleaning solutions. If you’re unsure, contact us or consult your surface manufacturer.
Eff-Off stands out for its powerful foaming action, fast results, and ability to tackle severe mineral buildup on a variety of surfaces. It’s a favorite among contractors and property managers for its reliability and performance in both residential and commercial settings.
Eff-Off is best suited for outdoor use due to its strength and foaming action. If used indoors, ensure the area is well ventilated, and avoid overspray or chemical runoff. Always wear proper PPE and follow all label safety instructions.
Eff-Off is an acid based cleaner, designed to aggressively remove mineral buildup. Use caution during application and avoid contact with vegetation or non-target surfaces. Rinse thoroughly and follow all safety guidelines on the SDS. For an eco friendly alternative, check out our biodegradable cleaner options.
Yes! Eff-Off is formulated to break down and dissolve calcium, lime, and efflorescence deposits on porous surfaces such as concrete, stone, and masonry. Its foaming action penetrates and lifts stubborn mineral buildup caused by irrigation systems, sprinklers, or weather exposure.
Eff-Off is safe and effective on most hard surfaces including concrete, brick, stone, pavers, and masonry. It is commonly used by professionals to remove calcium and efflorescence buildup from driveways, patios, retaining walls, and other exterior surfaces exposed to hard water.
