Anyone Using a Manifold for Downstreaming

Anyone use a manifold to DS. What valves and size do you use?

I currently use a pentair valve to meter my batch mix SH. I was thinking of using a clear manifold so i can identify problems easier when DSing. I also want to upgrade my pentair valves to something better.

I don’t know about the manifold but after multiple issues with those pentair valves I switched to the $$$ GF valves and haven’t had any issues since. While you’re at it get some Hayward check valves.

I can’t take credit for this, the other guys steered me to the better valves.

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I was looking to go to them. I’m rebuilding my DS system and want to upgrade everything. This season i was fighting with bad injectors, air leaks, broken metering valves and leaking hose. Every issues took time to identify from process of elimination which sucks in the middle of a job.

I use made the diy software metering system with the pentair valves. I plan on replacing the valves next year with something better / getting a whole new metering system that’s more durable.

I have a three way ball valve that I turn depending on whether or not I want to use the DS injector or use the 12v pump.

Works well for down streaming. Have had issues when using the 12v. I think there’s too much back pressure on the metering valve joints causing issues.

What @dcbrock said……I have them, no issues and have had this setup for 4 seasons.

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Is manifold for down streaming a common practice?

Considering they also said they are using a metering valve on their batch mix… I’m guessing they are just getting the terms mixed up… I’ve never heard of using a manifold on a DS injector. It sounds like they are asking how to build a proportioner.

They use manifolds to downstream other chemicals like degreasers or acids…etc. they can pull chems from different storage tanks this way.

Got a link or picture of that set up? I’ve never seen a manifold on a Downstream Injector…

My injector is at my reel, connected to a hose that runs to a three way ball valve which is plumbed into the top of the proportioner. Turn the ball valve one way and the injector pulls chem through it. Turn it the other way and the chem goes to the 12v.

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Sure……this is a 2 port but they make 4 ports and more. Judd West just does the 2 port manifold.

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Interesting… I have the same set up, but instead of the 3-way going to a proportioner it just goes back to the buffer to wash out the injector after I’m done for the day.

I guess I just always assumed those were for 12V systems not down streaming but it makes sense if you have other chems you can downstream and know the dilution ratios.

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I mainly use it in this manner because I have sh, soap and water plumbed into my proportioner. Saves me from batch mixing etc. I got the idea from someone on YouTube. They used camlocks at the outlet of their proportioner to jump between down streaming and soft washing.

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I don’t use a manifold, but I use the dual barb stainless injector from GP. Most of the advantages of a manifold setup without the complications or flow restrictions.

I have seen these dual barb. Can you explain a little further? Do you rinse / purge the injector with second barb? Seems to be the only reason to have two unless down streaming something else.

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I want to use it to mix my soap and sh. I clean some houses that don’t need SH and only soap. I also want a clear manifold for trouble shooting. I would be able to see if I have air in the lines or if it’s not pulling SH. It’s hard to see with clear hoses.

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