Update.
since putting on the extra silicone grease the leaking has completely stopped! I’m running at 2000rpm right now for about 4 hours and it’s perfect.
thanks to the clear choice labs test kit my son and his mates are happy to report the they can open their eyes underwater with no stinging. First time in this pool!
@AusPhil thank you so much for your guidance and assistance. My setup is modeled off your setup and it works perfectly. My kids and I can’t thank you enough!
@needsajet and
@Texas Splash thank you too for your input.
The water is 27c and crystal clear thanks to you kind folk. We’re looking forward to a cool summer in the pool!