David R Blue Tier VIP MFK Member Apr 26, 2005 5,056 259 346 44 New Zealand Apr 11, 2010 #11 I doubt we'll get them over here, I'll investigate the pool ones tomorrow.
David R Blue Tier VIP MFK Member Apr 26, 2005 5,056 259 346 44 New Zealand Apr 11, 2010 #12 If I'm using a layer or two of filter wool as a pre-filter, would I still use a layer of 10ppi Poret foam, followed by a 20ppi and 30ppi sheet, or would I not need the 10ppi?
If I'm using a layer or two of filter wool as a pre-filter, would I still use a layer of 10ppi Poret foam, followed by a 20ppi and 30ppi sheet, or would I not need the 10ppi?