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Old 05-03-17, 04:29 PM   #5
oil pan 4
Land owner
Join Date: Nov 2012
Location: NM
Posts: 1,006
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Opened it up this year but before I put the liner on the in the frame I took a bunch of 1/4 inch thick high density floor under layment cut it to fit my hot tub corners and layed it down layer by layer until it was at least an inch thick. Then put 1 layer around the inside.
So now instead of just sitting in the ground it's sitting on an inch of Styrofoam.
The flir is showing less heat loss, I just need to wait for another 64F night to check it's heat loss again. For consistency and to make a good comparison.
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