I was skeptical of any sort of quick fix but I had a leak in my 500 hundred gallon spa that was quite substantial. The reason I went with this versus draining the spa and fixing the PVC is because it was about 14 degrees and has been hovering around those temps for a couple months. So adding 200 hundred gallons a week untill spring or trying this item were my choices. I followed the directions removed the filter and added around 8 to 10 ounces and kept it recirculating for two days no heater on.(Can only turn heater down to 80 not completely off) Then for 4 days I went out stirred the water around(Some of the sealer will settle to low points) and had it recirculate for 4 hours. I marked the water line and haven't had any noticeable water loss for going on two weeks now.I did need to vacuum up what little remained and wipe down the water line but whats 20 minutes? Pretty impressed.

I`ve owned 3 pairs of these gloves. The first were great; the second and third pair 'disassembled' within the first few uses. i thought I had had bad luck with the 2nd pair and bought a 3rd. The 3rd pair disassembled at the velcro joint (became unglued) just as the 2nd pair had done. These are not cheap gloves and it angers me that they fail right after the return period with AMAZON expires. I am disappointed that FOX has gotten cheap on their production practices: To save on sewing, they are gluing the velcro onto the gloves with cheap adhesives. I am now stuck with two defective gloves that can not be adjusted.