I would just get your ratio’s down first before you add more parts to it or start changing them out. Sorry I derailed your thread asking questions about the valves.
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I thought if I could just install two inline gpm meters that would monitor flow on either line from either tank I would always know if one were pulling more then the other, although I typically go off of the color of the chemical at the end of the hose I want to know for sure im running a 50/50 mix (6-6.5% SH) especially on days where the roof takes 2-3 coats to get it clean.
Both valves open is a 50/50 ratio bud, thats not my problem lol.
Have you tried mixing less than 64 oz for 5 gallons? Maybe half that and see how it does. I guess im just confused that 4-8 oz will batch mix a 100 gallon for roof cleaning but you need a half a gallon when using a blend system. Doesn’t make sense to me or am i reading that wrong?
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No man you are reading that correct lol! Thats exactly my problem, have called PWP and they confirmed 64 ounces to a 5 gallon bucket is correct. Also whats even more bizarre is they recommend stepping my soap line up to 3/8" which doesn’t make any sense to me if im flying through surfactant with a 1/4" line currently. I am stumped, I opened the valve barely enough to get soap through and it still flys through buckets. 
Im sorry I have not tried mixing less but really didn’t think I needed to after calling and they confirmed 64 to a 5 was correct ya know?
Have you checked inside that blend valve to see if it’s stuck or broken off and you just think you are cracked open? Just be sure all is good in there on your soap side.
Is the ball in it Hastelloy or titanium???
I’ll bite, what’s the difference?
Is tungsten better than titanium?
They both can live in 12.5%+ SH for eternity well I’m sure not forever and ever but a long long time
Neat info.
Tungsten gets a not recommended on the chemical compatibility chart as far as SH is concerned
You can get the Flowmeters in titanium the ones I have used where needle valve Flowmeter in brass.
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So the Hastelloy C276/C22/B2 is not SH stable ! 
I’d have to read up on it again but I had thought all Hastelloy’s were fully resistant
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I had it tattoo’d on my bicep
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I’m kidding brother Dez , I just saw that word hastelloy tonight for the first time. I do know what titanium is. I googled the C276 and it said it had tungsten in it lol. Just funnin ya .
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