Maybe. I’m sure someone is lol.
I’m kinda bummed because I feel like nothing ever really came of all this work. I’d hoped it’d be more…useful maybe? At least I hope all the information put in here is finding good use.
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I found it incredibly informative. Although I probably won’t diy a proportioner when I finally get one, I know what to look for when I go shopping.
I learned that there is a considerable difference in flow restriction between 1/2” and 3/4” plumbing.
I learned what the ideal materials and designs are for check valves and other components.
And I learned a lot of little facts and details that I don’t recall at the moment, but I’m certain will be invaluable when the time comes to implementing that knowledge.
This thread is definitely worth a read through, IMO
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@JBreezy Can you email me about this set up. I’m interested and am having problems with my system. If you don’t mind . Ronnie.farah@hotmail.com
I learned a lot from this thread too. Don’t get caught up on only using metering ball valves. I made this and it works like a charm. Cost me less than a $100:
Granted, I need to tighten up that connection to the pump input (starting to corrode due to drip).
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So how did you figure out the ratios? I am trying to figure the best system for me as I am getting into roof washing after several years of small time pressure washing work. I would love to have the details of that setup!
I took two 5 gallon water containers and marked them off in 1/2 gallon increments and put them on the suction ends and also put one on the output. Then pumped after I adjusted the valves until I got the ratios I was looking for using trial and error. It ended up that both fully open made a good slightly hot mix since the bleach line was 3/4" and the water was 1" with the line lengths that I have.
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I learned that I should probably just buy one with 2 day shipping rather that screw around trying to re-invent the wheel.
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I’d come to the same conclusion. 
But sometimes it’s fun tinkering with things. I do what I want. Even if it doesn’t make sense. mic drop 
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Hi Breezy I don’t know how to contact you just joined this site. I’m thinking about switching over to a proportioner set up can you PM me or something.
I get notified still lol. But I doubt I can help you. I have touched this stuff in 1.5 years.
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@JBreezy, from your research into fluid dynamics, do you think it would be worth it to build a (mostly) 3/4” proportioner if all I can find for a reasonable price are 1/2” proportioning valves?
From the conversations we’ve had before, I seem to recall most of the flow restrictions happen in the elbows.
Bump: this question is open to anyone with a theory on the subject 
Sorry, I haven’t kept up with this stuff, everything I learned is in this thread and available for you to read and decide for yourself what you want to do.
Awe, shucks. 400+ posts to scan through… I know you’ve been away from this stuff for awhile now, but I guess I was hoping you were like me and would just have it all committed to memory, anyway 
No, sorry. You’re way more brilliant than I am lol. Softwashing proportioners is not high on my list of priorities. Actually it’s not on my list of anything anymore lol.
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You’re fortunate. My brain is packed with all sorts of useless info from times I got really interested in researching something, and now have zero interest or need for. I’d love to be able to free up some of that space
Would be intrested
@Mtechpressurewashing apparently you haven’t read through the whole thread. Breezy isn’t going to make these.
