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Hello everyone! My Perfectemp electric heat pump just blew the other day and dumped it's oil into our pool. I have contacted the manufacturer and they have agreed to replace the unit as it is still under warranty. In the mean time, I have a major mess on my hands. I understand that the oil is...

During the long hot summer is it better to drain the solar panels or leave the water in them?

Can phosphates alone cause cloudy pool water? If so, under what circumstances does that occur? Not counting the use of phosphate removers. "Phosphates are excellent plant fertilisers. They do no detectable harm in humans (in fact, phosphorus is an essential element for all known life). However...

Have searched everywhere and cannot find any evidence that Aqua Ammonia (alone) kills algae. Anyone have any experience or knowledge about this?

I say during the day as that is when it's blooming, but does the scientific data back that up?

Need to know what water conditions are most likely to result in cloudiness when adding hardness and why. I would like to be able to predict the occurance so it can be avoided. Any thoughts?

Split off of Increasing CH and CYA, which order and best application. JasonLion I would reccomend putting the CYA in a filter sock, used panty hose, or something similar and place the contents in your skimmer basket. It takes time to dissolve. Pouring it directly into the skimmer and allowing...

My more experienced colleagues at the pool store say that a bad algae bloom will ruin the element, even a new one. I suppose it's possible but, being the eternal skeptic, I'm not convinced. What say you?

Perhaps these questions have been answered previously on this forum, but I've been unable to find it. I know it's said that when chlorine is added to a pool that contains CYA, some of it combines with CYA and is "held in reserve". My question is... Held in reserve for what? When is it ever...