Black Diamond StoneworksUltimate Spa Filter Cleaner Fast-Acting Spray. Works instantly on Hot Tub & Pool Filters leaving behind no sticky residue. Prolongs filter life and pool equipment. No soaking

A bit skeptical of this product, but I gave it a shot. Man, was I impressed. The filter went went from slimy and oily to absolutely pristine and like new condition in 5 minutes!This cleaner is NO JOKE! Will extend the life of your filter by a couple of changes easily! GET THIS…YOU WONT BE DISAPPOINTED!

It cleans a filter, but if your filters are beyond cleaning it won’t miraculously turn a junk filter into a new one.

Works as described. Spray, wait 5 minutes, rinse. No overnight soaking. Only takes a little. I cleaned 4 Pentair filters and only used about 8-10 ounces of product. I would recommend.

Easy to use and works well. Sprayed on my filter, waited 15 minutes, and sprayed off. The cleaner seemed to remove most dirt and oil on the filter. This is way more convenient than soaking a filter over night. Would purchase again.

Easy to use!

Using this for filter cartridges on a large duck pool. Cleans well

This spray worked in seconds, and it cut my cleaning time in record speed. I recommend this to anyone, especially if you are a first time pool owner like myself. You can do it!!! it was fast and simple!!

I keep my tub balanced and clean, so my filters stay pretty clean too. But we didn't like the soaking routine. This is fast and effective for us. Minor soil comes off with a spray and water hose- no special attachments. If your filter gets very nasty, I recommend a complete water change and an internal cleaner - repeating until your water is clear and foam free. Start with clean water and new filter and this is a good part of maintenance schedule. I use about 2x per month with bi weekly water check and maintenance. I doubt it is a miracle solution, most things aren't- but it is easy and works

I wish I had thought of taking a picture of my filter before use the product. I have a swim-spa and the filter was light brown color, it cleaned very well. I did not follow the instructions though (reason for 4 starts), I let the filters soak for about 2-3 hours before last rinse.

Works well in cleaning the filter. After spraying with the solution , I just left it longer than what was suggested. After about an hour the filter was clean. And just washed it with water.

I should have believed The reviews that said this filter cleaner was useless. Sure, it smells nice, but it did nothing to remove any of the buildup in the filter.

Complete waste of time. This product does not work as advertised. Hardly anything is removed from the filter after spraying it, soaking it, everything. IT DOES NOT WORK. And, it stinks, terrible stuff, very labour intensive if you hope to remove anything at all from your filter. Don't waste your money

This product is amazing. We tried it for the first time, followed the instructions, and then spray the water on it to clean it and it came really clean. I would strongly recommend this product.