Parallel pump setting?

Hi, anyone done this before? I was thinking about doing that. Get two 7GPM pumps, and I can get really high GPM for softwash and roof cleaning. And if one fails, I can still work.
It’s just I am not sure whether 3/4" hose will do.

There are plenty of topics made on hooking together 2 pumps and when you need to size up hoses.

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Siamese kit…

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Siamese kits would work for 12v systems as well?

Not sure but water flows thru the pumps when motor not running…to run2 12 v is just a matter of plumbing two hoses into one

Why would you want to run2 12 v pumps?

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That’s what he was asking about the 7gpm pumps I assumed.

Oh I see sorry missed that part.I’m not real knowledgeable on soft wash to answer that.I have read upon it.though the mass say 7 gpm plenty for hw.anything else would waste chems. When doing large jobs is when most say more than 7 gpm.you gotta count the runoff will be alot on a house or roof if you running more than 7gpm.

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that there image is the set up of a Siamese kit…yep yep yep

Who tried this? How did flow and reach improve?

They sell this now. 10 GPM.

EFSW10000 10.0GPM SOFT WASH (BLEACH) PUMP

Im really interested in this topic. I just want more reach, not flow. Im thinking of just setting up a tandem system with a bypass for both pumps. So I can run both when needed and always have a back-up ready to run.

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