tank remodeling,sump question? (last page)

[Delphinus]

Originally Posted by Elias@caco3reef.com

A question to those used Spa-flex.should the 1.5" spa flex it tight like a PVC on any fitting or should it be loose and use some kind of transition fittings.Because seems like mine fit loosely in the fitting and I bought this product G941HT… SPA FLEX from www.greenlinehose.com/
and the specs says 1.5" spa-flex with ID 1.65 AND od 1.90

I searched on G941HT on that site and came up with this: http://www.greenlinehose.com/_pdf/hose/2.Water.pdf#search="G941HT"

... which I have to say looks like some kind of rubber? That's not spa flex. Spa flex is, literally, flexible PVC pipe. You use PVC cement same as like for rigid PVC (you can use regular PVC cement but the flex PVC cement is clear because it has a little bit of give to it) and yeah the fittings are ordinarily a pretty tight fit (same as rigid PVC would be - it's the same fittings).