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Thanks for the info. I guess I need to look at my plumbing job again. The temp is only varying by 20 degrees either way, so my pressure change should be nowhere near 10-15 lbs. I will check the test...

Yes, air. That is the norm for around here. It is just not advisable to pressure it any higher than 100psi.

I am trying to test some new CPVC plumbing I installed. If I pump the PSI up to 100lbs, it holds at that PSI for a few hours, but by the next day it is down to around 80psi. All of this plumbing is...

Thank you for the advise. I'm not trying to save any money, just making sure I do it right. So I will keep the 2 inch dry vent and tie that into the existing 3 inch vent going up through the roof....

So, if I take the sink drain from the other room out of the mix, does everything else look good then? Thanks to everyone for the replys. I know this is a pretty simple bathroom, but I am also not a...

Terry, the sink that comes in on the right is just a utility sink and it also has a vent off of it. So, I am ok then?

Thanks Chad. I agree about the tub drain. My bad. It would have to be 2 inch if wet vented. This is why I ask questions on this site. People here give good advise. I don't know about the lav arm...

I am adding a new bathroom to my house. I am going to tie into the existing 3 inch drain pipe. There is currently a 2 inch sink drain that runs to the existing 3 inch drain. My new bathroom goes...

The rain shower head I picked out flows 2.5gpm/80psi/1/2" line. The body sprayers I picked out each flow 2.0 gpm/80psi/1/2" line. So, I guess the flow rate I need for the shower alone if nothing else...

I just talked to the water service department and they said that there is no monthly difference in billing price between the 1" and 1 1/2" meter. Just the inital cost of the meter is different. They...

I think the only variable that was missing is the pressure at the street. I have found out that the pressure at the street is 75lbs. Fixtures: 1 kitchen sink, 4 bath sinks, 2 bathtubs, 1 shower, my...

Everyone has been great with their responses. This site is a valuable tool not only for professionals, but also for people like me that just want to know how things should be done right. The...

Terry, that is some great detail. It seems like the consensus is that I use a 1" meter with a 1 1/2" line, correct? Please help with a few more questions that I have and then I will stop bugging...

Thanks for the reply so far.
Worsnup,
I'm not a plumber nor an architect. A scale drawing done by me wouldn't be any better than if I let my 9 year old do it. Sorry. I have three toilets, one...

I am going to hook up to the city water line because my well is shot. My house is 670 feet from the road. I have the option of installing a 1" or 1 1/2" water line with matching tap, meter, etc. I am...