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My hot tub was losing water quickly so I've let it drain to try to isolate where the leak might be. I am pretty confident that it is in the last 2 feet of piping that feeds the bubbler jets - so not an important pathway for filtration. The pipe is below ground and I really do not want to dig...

The tank body of my Sta-right PE5E-125L has a hairline crack that is causing leaking. The part is so old (tag says 1981) I can't find it in any part list, but I am pretty sure that it can be replaced with the Pentair C176-47P1 Tank Body (~$80). The motor is fine, but also old and single speed...

Wait! Isn't bleach super basic and needs acid to balance? I am looking for an equation that tells me how much dry acid to add as a function of how much house hold bleach I add to keep the resulting PH at 7.4 or so....

We are doing a solar energy project and want to model in enough panels to heat the spa. Does anyone have an estimate of how many kW hr/ year they are using to keep their spa at temperature year round. If so, I would really appreciate you posting below: where you live what temp you keep the spa...

Newby here reporting on first attempt and cleaning out and refill of a very old spa that "came with the house." The previous owners had a service company maintain but they supposedly never used it. The water was clear but the jet motor was dead. I figured I'd replace the jet motor (another...

I am draining my hot tub so snapped this photo of the hard white stuff building up above the water line (water line was where the tile is dark blue). Is it scale? I've tried wiping it off with vinegar but it doesn't help much. Any other ideas? Thanks!

I recently inherited this in ground hot tub in my new house. I am assuming it it plaster/pebbles. It it a little rough on the skin, so wondering if maybe it's degraded? Also, notice the slight blue stain on step - would appreciate thoughts on what that might be - though it doesn't seem bad...

So I'm running Ahh Some in a tub that "came with the house" and I was not prepared for how much of the the sticky gunk is being dislodged and ringing around the edges. It's great cuz I know I'm getting the tub clean but I'd appreciate anyone's idea on how to best clean the brown sticky biofilm...

I stared at the bleach section for a long time trying to find any "pure" bleach at my regular Vons/Safeway grocery store. All of the Chlorox brand had "Chloromax" so I assume none are good. The generic Safeway bleach "Signature Home Bleach Regular Scent" didn't list the ingredients that I...

I am still trying to wrap my head around FC. What is FC and what isn't? Is FC the sum of all free chlorine ions in solution so FC = HOCl + OCl + Cl? And just to ask outright: what does the color indicator FC drop test measure exactly? I take it there is no direct measure of HOCl (the...

Does anyone know what size shaft seal to order for the Sta-rite PE5G-122L Pump? I just can not find information about this model # on the web anywhere! Thanks. -Cindy

Hi everyone! So glad to have found this site as I ponder the deeper questions of spa maintenance! I moved into a new house with a spa in November and our family of 4 enjoys the spa 3-6x per week. I did not drain the water when we moved in as it was crystal clear and had been under a weekly...