Building Washing Topics

The July issue of eClean Magazine will include articles related to building washing (among other things). If you have a topic you’d like to see covered, or if you are interested in writing, please let me know ASAP.

Thank you!

What kind of stuff are you looking for?

Hey Allison,

Great stuff you are doing…

How about an article on how to determine sh concentrations when downstreaming? Like, with a certain draw rate injector, with x gpm machine, how calculate whatever the actual percentage of sh is hitting the house…


Bob keenan

I would love to see a review or recomended list of pressure washers and maybe sort them by GPM.

How about building your own set-up. I’m in the process of doing that soon.

A lot of variables go into this equation. If you really want to know what % of sh is hitting the house. Here’s what you need to do.

Put 1 gal of water in a bucket.
put your downstream tube into the bucket
get 3-4 5 gal pails
put your soap low nozzle on
fill the 5 gal buckets until there is nothing left of the 1 gal.
measure how much water you used to empty the 1 gal bucket deduct 1 gal from total
if you have 10 gals of water left your ratio is 10:1 or whatever yout gals are.
you need to do this test with the normal amount of hose you use when washing because length of hose will change your downstream ratio.
once you know the ds ratio you can then do the math to figure out the sh strength hitting the house.

This is going to vary by machine by downstream injector really no set way to do it except by doing your own test. On each machine you have.

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Thanks Clark!!


Add some food color to the 1 gal bucket that way you know when it starts and stops coming out of your hose.

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Or some cheap soap.

Interesting idea…