Liquid Solar Cover?

Mar 30, 2018
2
north attleboro
as i image everyone wants a warmer pool. i original toyed with the idea of making a Solar Thermal array, the math just didn't work out. now im thinking a solar cover is the way to go, but i really don't have a place for a reel. So then i found Liquid Solar Cover, i like the sound of this stuff has anyone used it, what do you think?
 
I used it my first year. I felt it helped with evaporation but just like a plastic cover it didn't help heat the pool. Liquid or plastic their best function is to hold heat in. I have a heater so it was hard to say how much heat it helped retain. And after looking at my gas bill for the first season with the heater it wasn't worth it to buy the liquid or plastic and certainly wasn't worth it to have to take a solar cover on/off all the time. My .02 is to skip it.
 
I experimented with this stuff toward the end of last season when my autocover died. The pool was going to be demoed in another month or so anyway, so I didn't bother to get it fixed. I figured what the heck, let's see what this 'solar-cover-in-a-can' is all about.

The way it works is that it creates a molecular layer on the water surface. It's totally invisible and you can't tell it's in the water when swimming. It didn't seem to affect my filter or water chemistry much at all. The product I used needed to be added about once a week.

While it's all great in theory, it falls way short in actual practice. The only points I'd give it is, that provided your water is very still, and there is no breeze, it will cut down on evaporation better than if you were using absolutely nothing at all. Under ideal conditions, it may be about a 1/4 to 1/3 as effective as a bubble solar cover. If the water is disturbed at all, even if a breeze is blowing across the water, the molecular layer will 'bunch up' and create holes in the coverage, thereby rendering it useless. It takes a while for the layer to reorganize itself across the water, and again, will only do so if the surface is perfectly still.

So for me, the results of using it were so minimal that it wasn't worth it.
 
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