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cavediver · 08-17-2018, 03:32 PM

I believe cement is a chemical reaction it doesn't need air to cure. Sand should be enough. What about the PVC and UV rays?

Jack

08-17-2018, 03:32 PM	#16
cavediver Senior Member Join Date: Jun 2018 Location: Swanton Posts: 188	I believe cement is a chemical reaction it doesn't need air to cure. Sand should be enough. What about the PVC and UV rays? Jack