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phareous
07-24-2008, 09:41 AM
I purchased a 10-year old house about a year and a half ago... the existing sprinkler system hasn't worked since I moved in and I've started to investigate into how its all laid out. This isn't directly related to why it hasn't worked...but after looking over things I discovered that they tied one zone directly into the main water line without using a backflow preventer or anything. And the other three zones (while tied into a backflow preventer), are located right under a bush. So I am going to need to move all these valves and plumb it correctly so its safe and can be maintained.

My question is do you think there are any issues by reusing the valves, or should I just buy new ones since I am going through the trouble of disassembling the pipes, laying new ones, etc.? These are 10-year old rainbird DV valves. I have replaced the diaphragms as part of my repairs. They turn on and off fine, and don't leak as far as I can tell. Have there been any kind of improvements, etc. in the past 10 years that I could benefit from or am I good with what I have?

AI Inc
07-24-2008, 12:32 PM
At 10 yrs old they have live 70% of their life already. Replace em while your in there.

phareous
07-24-2008, 12:43 PM
Ok sounds like a good idea. And if I want to add a master valve, I just use the same type as the rest?

AI Inc
07-24-2008, 12:56 PM
Yes , sometimes when using a master valve ( we hardly ever do ) we will use a flow control.

phareous
07-24-2008, 01:26 PM
So what brand/model valves do you personally install?

Mike Leary
07-24-2008, 01:48 PM
Ok sounds like a good idea. And if I want to add a master valve, I just use the same type as the rest?

Since a master valve works every time a zone or program comes on, we will use a high quality brass valve.

Flow Control
07-24-2008, 03:33 PM
Since a master valve works every time a zone or program comes on, we will use a high quality brass valve.

What model?

phareous
07-24-2008, 03:57 PM
It sounds like the Rain Bird 100-GB would be a good one to use as a master valve

http://www.rainbird.com/landscape/products/valves/gb_series.htm (http://www.rainbird.com/landscape/products/valves/gb_series.htm)

Mike Leary
07-24-2008, 04:54 PM
What model?

I've got thirty Weather-Matic 8000 series in service with the S24B solenoid,
had problems zero. :)

Tom Tom
07-24-2008, 07:23 PM
I've got thirty Weather-Matic 8000 series in service with the S24B solenoid,
had problems zero. :)

Repaired one the other day that needed a diaphragm. Had to locate the damn valve too. In the ground for 35 years!

Mike Leary
07-24-2008, 07:25 PM
Repaired one the other day that needed a diaphragm. Had to locate the damn valve too. In the ground for 35 years!

I see it had a W*M valve locator, wish I'd installed more. 35 years is what
used to be the norm.:clapping:

Tom Tom
07-24-2008, 07:34 PM
I see it had a W*M valve locator, wish I'd installed more. 35 years is what
used to be the norm.:clapping:

Thats a drain cap. Is that what your talking about?

Mike Leary
07-24-2008, 07:38 PM
We used to use those to mark valve locations, also.

Wet_Boots
07-25-2008, 12:01 AM
Nize valve boxes.

Kiril
07-25-2008, 08:22 AM
Since a master valve works every time a zone or program comes on, we will use a high quality brass valve.

Ditto :clapping:

Note: Will agree with ML because he is old and head is already large