Only if your combined demand is greater than your 3/4 pipe can flow from your meter. Try not to use a 90 degree "T". A "Y" is much
less restricting.
Steve

"stryped" wrote in message ...
I have the black pipe ran into my crawl space and everything is
installed. Last hing to do is to tie into my water. I have a 3/4 inch
pvc coming from the water meter that starts the feed to my house.
Shoudl I just install a T there? Will this cause any water pressure
problems in the house?