Happy Leak Seal 450ml Spa Sealer Pipe Fix A Hot Tub Pipework Shell Leaks Repair Spas (450ml)

Had a leak under out hot tub which was difficult to find narrowed it down to one of three pipes at a junction tried to stop the leak with various other products and as a last resort tried happy leak seal. Wow worked a treat. More than pleased with the product

Product left hot tub with powdery residue still after 3 times of being drained and rinsed. But did fix leak.

We had a few tiny leaks in our old Hot tub. I suggested we try this and we were very pleased at the result, The leaks all stopped and not one returned. Cannot recommend this item if you have small leaks in your hot tub

Certainly did the trick after running it through a few times. I used it on a Lay-z-spa and it fixed a small leak in the pump which was causing water to leak out the bottom. What I should have done first was to open up the bottom of the pump as there are some seals that can be replaced - search youtube for "Leaking Lay-Z-Spa Pump Repair". If you have this problem, I'd suggest replacing the seals first and then running some of this stuff through just for good measure and to fix any remaining issues. I now have a leak-free lay-z-spa!

Worked well but not much for instructions. I emptied the hot tub, then realised it had to be full. Left it running on circulation for 4 hours then drained (again)Filled it up and no leaks !!

I had a leak in the hot tub, it was in two places. They were like a small drip from where the filter housing is attached and another by the master jet where it sealed against the tub. I followed the instructions plus used extra. I even emptied the hot tub as advised to let it cure. But once it was filled and turned on again it began dripping the same as before after about 48 hrs. So it didn't work for me unfortunately.

I’m not sure how it works or why it works but I was losing water and this stuff fixed it a miracle in a bottle

had a small leak this cured it excellent product