How Water Movement Affects Liquid Solar Pool Covers
by Monique Nelson on April 20th, 2012

One of the questions I get quite often is in regards to the efficiency of a liquid solar pool cover when there is movement in the water. This question comes in many forms:
  • “I have a pool vacuum...”
  • “What if my pump and filter system stay on...”
  • “I have a chlorine shark that swims around all the time...”
  • “I swim in my pool...”
  • “My kids leave pool noodles in the water...”
I'm sure you get the picture.

The simple answer is yes, these things will affect the liquid cover, BUT to such a minimal degree that you probably will not notice the slightest difference.

Basically, how the liquid cover works is by spreading a very thin layer over your pool water, which you will not see, smell, taste or feel and which is completely safe. When there is any movement in the water, be it a swimmer, a chlorine shark or a pool noodle, the product will move away slightly, and form itself around the item in the water. If the item is moving, the product will continually re-form itself behind the movement. As such, the product will still be working for you even if your pool jets are continuously running.

The same logic applies to windy days. Yes the liquid solar cover will be blown to one side of the pool when the weather is blustery, but as soon as the wind dies down, the product will respread itself to cover the entire surface of the pool. 

That's one of the nicest things about a liquid blanket—they are always protecting your pool from heat loss, even when you're in it, whereas a plastic or bubble pool blanket is only effective when your pool is closed and unavailable to you.

I hope this helps, but feel free to leave a comment if you would like a more scientific explanation.

Posted in General Information, Home Pools    Tagged with efficiency of a liquid solar pool cover, liquid solar pool cover, solar pool cover, pool cover, pool, pool vacuum, chlorine shark, pool noodle, liquid cover, bubble pool blanket, liquid solar cover, liquid blanket


Sean - September 13th, 2012 at 1:31 PM
My pool as a hot tub built in and when the hot tub isn't running there is a water fall effect from the tub to the pool - how badly will that disrupt the liquid cover and since the hot tub and pool share the same water source will running and heating the hot tub create any adverse affects?
Monique Nelson - September 13th, 2012 at 3:33 PM
The liquid cover will be disrupted, yes, but even as it overflows from your hot tub to your pool, it will be trying to re-spread itself over the surface of your water. After it moves slightly away from the waterfall, it will re-establish the layer.

Essentially, you will have a liquid cover on all your surface area except for the small area that is in constant turbulation from the waterfall. You should still see pretty great results!

I hope this helps, but if you would like further detail, please feel free to email or call!
Richard Johnson - October 3rd, 2012 at 5:28 PM
Would most if not all of the HeatSavr end up in our D.E. Filtration Tank floating on the surface where there is little mixing with the return flow? Also, is there an easy way to detect the presence of HeatSavr in our pool?
Monique Nelson - October 15th, 2012 at 12:48 PM
Heatsavr will flow through any filter media your pool uses, and be returned to the mail pool water to re-cover the surface of the pool.

There is no way to really detect the Heatsavr in your pool (which is usually a very big positive!), aside from the savings you should see each month on your heating costs and water usage.

I hope this helps, but feel free to get in touch again if you have any other questions!
~ Monique Nelson
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