In an air pressue line, it's common practice to use a closed loop system to equalize pressure and reduce pressure drop in each outlet when an another outlet is opened. If I closed the loop on my water system, do you think this would prevent shower cold or hot water shock?

 

Probably wont prevent it, but it might improve it.
plumber john

 

Sheider:

I don't know what you mean by "closing the loop". Would you split the water outlet on your water heater into two hot water pipes going throughout the house, with only one of them supplying all the plumbing fixtures and then the two pipes connected at their ends?

I've seen houses where they've run 1/2 inch copper supply line throughout the house for both the hot and cold water supplies. I think you could accomplish what you want to do better by running 3/4 inch hot and cold supply lines through out your house and supplying each fixture using a 3/4 X 1/2 X 3/4 tee. That way, both the hot and cold supply pipes can each deliver twice as much as any fixture can draw, so if one fixture (like a toilet starts drawing cold water), it shouldn't affect the shower temperature because the 3/4" supply pipe is capable of supplying both 1/2" pipes to the toilet and shower simultaneously.

I don't know if I misunderstood your post, or I'm saying something that's already blindingly obvious to you.

 

quote:<HR>Originally posted by Nestor Kelebay:
Sheider:

I don't know what you mean by "closing the loop". Would you split the water outlet on your water heater into two hot water pipes going throughout the house, with only one of them supplying all the plumbing fixtures and then the two pipes connected at their ends?

I've seen houses where they've run 1/2 inch copper supply line throughout the house for both the hot and cold water supplies. I think you could accomplish what you want to do better by running 3/4 inch hot and cold supply lines through out your house and supplying each fixture using a 3/4 X 1/2 X 3/4 tee. That way, both the hot and cold supply pipes can each deliver twice as much as any fixture can draw, so if one fixture (like a toilet starts drawing cold water), it shouldn't affect the shower temperature because the 3/4" supply pipe is capable of supplying both 1/2" pipes to the toilet and shower simultaneously.

I don't know if I misunderstood your post, or I'm saying something that's already blindingly obvious to you.<HR>

Yes, I would I would connect them at the end. That way each outlet has two pipes feeding it and hopefully maintain pressure when others are opened. It basically doubles the size of the feeding pipeline- in this case 3/4in pipe. My house is already plumbed with 3/4in feederpipes with 1/2in fixture pipes as you suggest but I still get significant pressure drop when two or more are open. I'm proposing to connect the ends, as you noted, for both the hot and cold water feeder pipes. Thanks for input.

 

quote:<HR>Originally posted by plumber john:
Probably wont prevent it, but it might improve it.
plumber john<HR>

Thanks! I'll try it and let you know if it works.
Sheider