View Full Version : Backflow in Your State
dlee1996
07-10-2009, 08:17 PM
Where must backflows be installed in your state?
DavidS1964
07-10-2009, 08:41 PM
right were the city meets the property. Also on each hose bib.
dlee1996
07-10-2009, 10:10 PM
I guess I am asking can a backflow device be installed below grade in a meter box.
Posted via Mobile Device
FIMCO-MEISTER
07-10-2009, 10:19 PM
What did the manufacturers say? That has always been an oddity to me this putting DCVAs below grade in a box. Driving around the country you see a lot of BFLWs above grade. That is out at the street to.
dlee1996
07-10-2009, 10:30 PM
There is mot a manufacture out there that recommends installing them below grade where they may become submerged.
FIMCO-MEISTER
07-10-2009, 10:40 PM
What I suspected and have read on the info sheets that come with them. Seems like that is the next logical step. Get the bcflws above grade according to the manufacturer specs. Can't hold the maker liable if they aren't being installed according to their recommendations.
hoskm01
07-10-2009, 11:25 PM
Maybe the better, first, question is... Are DCVA's even allowed in your locale?
AI Inc
07-11-2009, 04:41 AM
Maybe the better, first, question is... Are DCVA's even allowed in your locale?
For me , that answer is no. Now does anyone inspect them? Some towns do , some dont.
Kiril
07-11-2009, 09:30 AM
There is mot a manufacture out there that recommends installing them below grade where they may become submerged.
Really .............
http://www.watts.com/pdf/1915345.pdf
Guess I'm imagining that picture of the meter box. :dizzy:
Wet_Boots
07-11-2009, 10:07 AM
It's the RPZs in meter pits that are the issue, esprcially when they figure to replace a DCVA that was so located. That's when you have to consider the possibility of the device being submerged.
dlee1996
07-11-2009, 10:53 AM
Really .............
http://www.watts.com/pdf/1915345.pdf
Guess I'm imagining that picture of the meter box. :dizzy:
They will also state where it may not become submerged. How will you prevent it from becoming submerged?
Kiril
07-11-2009, 11:00 AM
They will also state where it may not become submerged. How will you prevent it from becoming submerged?
Care to show me where it states that in the linked doc?
Or this one as well.
http://www.watts.com/pdf/1915216.pdf
Mike Leary
07-11-2009, 12:00 PM
When I helped write the install specs for my purveyor, we called for not only side to side clearance, but clearance below to a gravel sump. Some fool leaving a test valve open has always been one of my biggest fears, but I have never heard of such happening.
dlee1996
07-11-2009, 04:48 PM
Care to show me where it states that in the linked doc?
Or this one as well.
http://www.watts.com/pdf/1915216.pdf
It shows a meter box, but it does not show it below grade. I have a e-mail at work from Watts stating they do not recommend them where they may become submerged. I will post it next week.
So Kiril are you saying it is a good idea to install a backflow below grade where it may become submerged?
EagleLandscape
07-11-2009, 05:30 PM
next topic please...
how bout them yankees?
Wet_Boots
07-11-2009, 05:59 PM
Better them than the Mets....
Kiril
07-11-2009, 07:19 PM
So Kiril are you saying it is a good idea to install a backflow below grade where it may become submerged?
You let me know when TX starts to require REAL back flow protection and I will answer your question.
As far as your meter box answer .... :hammerhead:
dlee1996
07-11-2009, 08:29 PM
what is required in the land of nuts and berries.
Posted via Mobile Device
Kiril
07-11-2009, 08:34 PM
Perhaps devices that will actually protect the water supply, not pretend to.
EagleLandscape
07-12-2009, 06:06 PM
Agreed. Only reason texas won't change now is they are too far in the hole by using DCVA. They are catching so much flack over the new rules, I've heard talk about them possibly going back to the way they used to be (no rules at all).
that info was from a knowledgeable source....
dlee1996
07-12-2009, 07:24 PM
Agreed. Only reason texas won't change now is they are too far in the hole by using DCVA. They are catching so much flack over the new rules, I've heard talk about them possibly going back to the way they used to be (no rules at all).
that info was from a knowledgeable source....
So you are saying that we are to far down the road with backflow so why change now? If it is not right it needs to be changed.:dizzy::dizzy:
If you are referring to HB2339, last I heard it did not have enough support and was dropped.
FIMCO-MEISTER
07-13-2009, 07:48 AM
Perhaps devices that will actually protect the water supply, not pretend to.
You didn't answer his question Kiril. It seems from threads you guys have lots of plastic AVBs. I'm not sure CA has a lot to crow about in this matter. DLee is asking some pretty good questions in my book about protecting the TX water supply as our population increases by another 10 million in the next 30 years. Is irrigation water going to be treated as low hazard in TX is the big question. Should we be beholden to to the past on this issue? Not in my book but telling a customer I've had for 20+ years they need to spend a grand redoing their backflow is no joy either.
Kiril
07-13-2009, 08:36 AM
You didn't answer his question Kiril.
I sure did answer his question. Backflow that are high hazard rated .... i.e. ones that will actually protect the water supply. That aside, DLee didn't answer the question why the installation docs for DCVA's (eg. what is normally used in TX) does NOT state they can't be installed below ground when he stated otherwise. In fact, that is one of the installation options.
It seems from threads you guys have lots of plastic AVBs. I'm not sure CA has a lot to crow about in this matter.
This is true, at least in the valleys.... and they are high hazard rated providing they are installed correctly.
DLee is asking some pretty good questions in my book about protecting the TX water supply as our population increases by another 10 million in the next 30 years. Is irrigation water going to be treated as low hazard in TX is the big question.
"Irrigation water" isn't the problem as much as what can be sucked in through an irrigation system and into the water supply.
Should we be beholden to to the past on this issue? Not in my book but telling a customer I've had for 20+ years they need to spend a grand redoing their backflow is no joy either.
Instead the state would rather burden the consumer with the additional expenses incurred by pointless regulation that will largely achieve nothing.
DanaMac
07-13-2009, 09:32 AM
DCVs not accepted in Colorado. But I have 2-3 systems where they are in place anyway. One is below ground in a VB.
We just install PVBs below ground :) Seems the right thing to do.
Tom Tom
07-13-2009, 09:38 AM
We just install PVBs below ground :) Seems the right thing to do.
Or between floor joists
DanaMac
07-13-2009, 09:40 AM
Or between floor joists
Oh goodness yes. Seen my share of those. Ever seen one between the joists, and the ceiling is finished off with an access panel for the PVB? Lovely.
In those cases, we do the initial repair we were called for, and state that we can not work on the system again unless brought to code.
Tom Tom
07-13-2009, 09:43 AM
Oh goodness yes. Seen my share of those. Ever seen one between the joists, and the ceiling is finished off with an access panel for the PVB? Lovely.
.
haha, that's top notch.
DanaMac
07-13-2009, 09:48 AM
haha, that's top notch.
Good ol' fashioned Colorado quality.
Get together for a beer in the next couple days?
Tom Tom
07-13-2009, 09:53 AM
Good ol' fashioned Colorado quality.
Get together for a beer in the next couple days?
i'm in.........
Wet_Boots
07-13-2009, 10:05 AM
And it's all deductible....
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