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    strange colouring of spa waterfalls

    Hello! 2010 Sundance Maxxus Spa. I'm currently using bromine tabs to sanitize, but used lithium in the early days of ownership. What is causing this orange-brownish colouring? Any solution to make it look nice and near transparent again? In the picture, left side is showing the underneath...
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    Hayward SP071620TFV vs SP071621

    Hi! My Hayward Vari-Flo Valve (SP071620TFV) is cracked near to pressure gauge so I will need to replace it. SP071620TFV seems hard to find (in Canada).... what's the difference with SP071621? Thank you! Christian
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    What's this product? Borate?

    Hello! I just bought this product and was wondering if there's a way to know what it really is... and how to use it with Pool Math. Thank you!! Christian Jacuzzi SPA Velvet-Up
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    PoolMath app recommended FC levels

    Hi! I'm currently in the process of opening the pool. Temperatures are still too cold for my SWCG to work properly, so I'm currently treating the pool as a chlorine-bleach pool. In the app, pool is currently setup as a SWCG. My last test, FC of 7.5, CYA 50. How come the app is recommending FC...
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    My 1st opening

    Hello! Pool owner since 2014, but my 1st time doing the opening due to COVID-19. Usually, the company doing the opening will empty it all, acid wash, refill with tap-water and start all the equipment. This time, no emptying, no acid wash. I was a bit nervous to plug everything together, removed...
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    What is this and how to clean it?

    Hello! Pictures are from last year, but still about the same... what is this white thing and how to clean it? Thank you!! Christian