DIY Softwash Metering System


#282

That one weird valve drives my ocd crazy. Can’t look at it anymore.


#283

Do u use a droptube for your soap or do you have a separate saddle tank?
Also curious, do you a favorite 12V pump?


#284

He wasn’t concerned with OCD like you and i are lol. He just wanted functionality and short lead time. This was the only option we could think of.


#285

I’m waiting on @tireshark to get testing.


#286

Yes, We use a PWS/Tim Aselton Proportioner and previously used Slo-mo regularly.


#287

Me too lol. He told me he’s pretty busy tho. I guess we’ll just have to wait.


#288

Which ones don’t require flushing?


#289

what happened to eliminating the elbows, I thought I read the hat you were trying to use a 3 way Y fitting or hose?


#290

We did some math that’s showed that a 1" elbow had minimal losses through it, and the costs associated with having a custom manifold molded as a double te was way out of the practical cost range.

And it’s the diaphragm check valves that’s don’t require any flushing at all.


#291

sounds good. are the diaphragm check valves the same as the ones in the
latest pics? those are the ones with the hastelloy springs…correct.


#292

They are much more expensive. Might not be necessary with the quality and price of the hastelloys with viton seals


#293

Justin is doing great work with this, ultimately I’d like to have a metering system where I can just turn off the soap and bleach to flush the pump without having to flush the SH valve. And of course, have all the valves be the same, lol. I’m with @Racerwith the whole OCD perspective. :drooling_face:


#294

Which is more expensive, I’m lost on the check valve options?


#295

Diaphragm significantly more expensive. Over 100$ each. Hastelloys about 15 30ish $


#296

No, diaphragm check valves do not have any metal springs inside (hastelloy or otherwise). The ones in the picture are hastelloy spring check valves.


#297

One of my check valves got delayed because the supplier was out of stock. Went and picked up just a basic PVC check valve yesterday to use for now, since it’s just for the soap line. Had some projects that just finished up, hoping to get it hooked up and testing here in the next few days.

Here is where i have it mounted on my trailer right now:

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#298

Which do you recommend?


#299

looks sweet!!!


#300

Diaphragm is the best choice, but the drawback is the additional cost.

I went with Hastelloy for the time being, to save a little cash while i see how everything works, and to see how long the Hastelloy will last. Can easily upgrade to diaphragm later, as the check valves are threaded connections.


#301

cool, thanks for the feedback @tireshark, from my previous research,
hastelloy is supposed to be non corrosive, even against bleach. So it
should take a good while before they need replacement.
Did you get your system plumbed up to your rig yet? If so, how’s it
performing? Very excited to hear the results of your test runs.