I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

On Wednesday, August 16, 2017 at 4:50:57 PM UTC-4, wrote:
I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

or two regular valves...
if this is potable water,
you should also probably require one or two backflow prevention valves so one source cannot back-feed to the other.

mark

On 8/16/2017 5:15 PM, wrote:
On Wednesday, August 16, 2017 at 4:50:57 PM UTC-4, wrote:
I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

or two regular valves...
if this is potable water,
you should also probably require one or two backflow prevention valves so one source cannot back-feed to the other.

mark


Only ones I've seen were to divert from one source to two outlets.
https://www.mcmaster.com/#wye-ball-valves/=18yy1sl

I don't know if source selection would be permitted by code with such a
valve as you can get backfeeding from one to the other. You'll probably
have to put in two valves and code would want a backflow preventer too.
We had that system at work for boiler feed from city or well water.

On 8/16/2017 5:15 PM, wrote:
On Wednesday, August 16, 2017 at 4:50:57 PM UTC-4, wrote:
I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

or two regular valves...
if this is potable water,
you should also probably require one or two backflow prevention valves so one source cannot back-feed to the other.

mark


Even if the end use is not potable water, as long as connected to town
water it would be needed.

On Wed, 16 Aug 2017 14:15:35 -0700 (PDT), wrote in


On Wednesday, August 16, 2017 at 4:50:57 PM UTC-4, wrote:
I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

or two regular valves...
if this is potable water,
you should also probably require one or two backflow prevention valves so one source cannot back-feed to the other.

mark

+1
--
Web based forums are like subscribing to 10 different newspapers
and having to visit 10 different news stands to pickup each one.
Email list-server groups and USENET are like having all of those
newspapers delivered to your door every morning.

On Wednesday, August 16, 2017 at 6:06:01 PM UTC-4, Ed Pawlowski wrote:
On 8/16/2017 5:15 PM, wrote:
On Wednesday, August 16, 2017 at 4:50:57 PM UTC-4, wrote:
I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

or two regular valves...
if this is potable water,
you should also probably require one or two backflow prevention valves so one source cannot back-feed to the other.

mark


Even if the end use is not potable water, as long as connected to town
water it would be needed.

Plus not enough info. Is it potable water or other? What size?
If it;s the latter and 2" or so in size, there are 3 way pool valves.
And if it's connecting even a potable well system to some other
system, eg irrigation, a backflow preventer would be typically required.

On 08/16/2017 04:15 PM, wrote:
On Wednesday, August 16, 2017 at 4:50:57 PM UTC-4, wrote:
I want a supply line to source from one of two water mains. I was looking at 'y' valves but the ones found all suggest they are 'marine' type (which does or doesn't make a difference). Is there a common Y valve used in home plumbing?

or two regular valves...
if this is potable water,
you should also probably require one or two backflow prevention valves so one source cannot back-feed to the other.

mark


It always seems that "potable" ought to mean "can be poted". However I
never learned to pote water.

--
"If Christ were here now there is one thing he would not be -- a
Christian." [Mark Twain, "Notebook"]

replying to oldyork90, JOrtiz wrote:
I think you must go on with the professionals help. They can give you better
advice.

--
for full context, visit https://www.homeownershub.com/mainte...s-1141255-.htm

On Friday, August 18, 2017 at 7:44:12 AM UTC-4, JOrtiz wrote:
replying to oldyork90, JOrtiz wrote:
I think you must go on with the professionals help. They can give you better
advice.

--
for full context, visit https://www.homeownershub.com/mainte...s-1141255-.htm

Thanks for that helpful tip via HomeMoanersHub.