Quote:
Originally posted by wrightie@Feb 4 2005, 03:05 PM
Soory to sound like an idiot silent but explain to me why i need backfiller, what to use as backfiller. I am not the most experienced guy when it comes to this so take it easy on me.
Thanks
Wrightie
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you basically need to layer fiberglass on the inside as well, not just the outside, otherwise under certain pressure, it could still cave in. even with a fiberglass shell, those dowels can only support so much.