Supreme threaded pipes or cpvc pipes or best?

Hi Pavankumar...

I have never used the supreme UPVC tubing system so cannot comment on it, but I can tell you that CPVC has a terrific track record when installed as the tubing manufacturer requires... ;)

I would also extend myself here a bit and suggest that you look into PEX tubing, but only if you can rent a tool from the supplier as the required "crimping" tool can be expensive.

Glad to discuss more if you want, OK?

Mark