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Thread: Rainbird sprinkler valve to be used for flush valve?

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    DIY Junior Member statin's Avatar
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    Question Rainbird sprinkler valve to be used for flush valve?

    I am in the process of setting up a iron filter and watersoftener in a new home. I was considering using a rainbow automatic controller with two valves to open and close one valve for flushing a sand/particulate filter and the the second valve to flush the contact/settleing tank. Does anyone see any problem doing this? I have used these valves in several homes for several years with no problems and thought it may be a good idea for some automation. Thanks for any replies.

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    That's all folks! Gary Slusser's Avatar
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    I can't see it clearly yet, can you describe it a bit more?
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    In the Trades Tom Sawyer's Avatar
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    Quote Originally Posted by statin View Post
    I am in the process of setting up a iron filter and watersoftener in a new home. I was considering using a rainbow automatic controller with two valves to open and close one valve for flushing a sand/particulate filter and the the second valve to flush the contact/settleing tank. Does anyone see any problem doing this? I have used these valves in several homes for several years with no problems and thought it may be a good idea for some automation. Thanks for any replies.
    So if I'm reading you right you are planning to pipe into the rainbow and then use two "zones" one to control to the sand filter and the other to flush the contact tank and all done by setting the timer? Novel idea. I can see no reason why not.
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

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    Aspiring Old Fart, EE, computer & networking geek Mikey's Avatar
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    That will work OK provided the downstream side is at low or zero pressure when the valve is "OFF". Backflow can occur if not. Sprinkler valves aren't really "valves" in the sense of controlling flow in both directions.

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    Jack of all trades DonL's Avatar
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    It should be able to work, for how long is another question.

    That type of valve is not made to be on (Have power applied) all of the time with out water going thru it to cool the valve.

    If I understand the setup, then a valve will have to be doing just that.


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    That's all folks! Gary Slusser's Avatar
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    Quote Originally Posted by Tom Sawyer View Post
    So if I'm reading you right you are planning to pipe into the rainbow and then use two "zones" one to control to the sand filter and the other to flush the contact tank and all done by setting the timer? Novel idea. I can see no reason why not.
    If he's going to backwash a filter and drain another he may need more than 3 valves. IMO that depends on what type "contact" tank and sand filter he has.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

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    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by Gary Slusser View Post
    If he's going to backwash a filter and drain another he may need more than 3 valves. IMO that depends on what type "contact" tank and sand filter he has.
    There was no mention of "backwashing". A simple mesh filter can be flushed by opening a drain valve so long as the direction of flow goes the right way and doesn't crush the filter element. I assume the contact tank would just open the drain port.

    There might be grit in there that could wear on the valve and shorten the life of it.

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    That's all folks! Gary Slusser's Avatar
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    Quote Originally Posted by LLigetfa View Post
    There was no mention of "backwashing". A simple mesh filter can be flushed by opening a drain valve so long as the direction of flow goes the right way and doesn't crush the filter element. I assume the contact tank would just open the drain port.

    There might be grit in there that could wear on the valve and shorten the life of it.
    Yeah me either, I can't see what type of sand filter he has or what type of retentention (contact) tank he has. So unlike others that are assuming what the has, I asked for a more detailed description rather than to tell him no problem.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

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    Jack of all trades DonL's Avatar
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    Sounds like a project for a Spouse Adapter.
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    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by Gary Slusser View Post
    Yeah me either, I can't see what type of sand filter he has or what type of retentention (contact) tank he has. So unlike others that are assuming what the has, I asked for a more detailed description rather than to tell him no problem.
    Agreed.

    I have a 100 mesh Banjo before the micronizer that if I open the draincock, can cause a reverse flow through the micronizer which is both bad for the micronizer and will collapse the SS mesh filter. I make sure the pump is running when I flush it to ensure a forward flow.

    About once a quarter, I manually flush it and my contact tank. I observe what comes out which gives me a chance to analyze the state of the system so I would not want to automate it. Brain-dead simple solutions create brain-dead users.

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    In the Trades Tom Sawyer's Avatar
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    Quote Originally Posted by Gary Slusser View Post
    If he's going to backwash a filter and drain another he may need more than 3 valves. IMO that depends on what type "contact" tank and sand filter he has.
    Yep, we agree.
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

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