I introduce to you the Pro-Mix-Alot V2.
This setup took me about 6 hours to put together, test and give it a approval for use to my standard.
With about 5 minutes of testing, you can get what ever mix you want and have it repeatable.
My house washes are broken down into (3) categories. 10/90, 25/75, 50/50 (bleach to water ratio). With these valves, I etched with a razor blade a notch onto the bleach valve. If I need a 10/90 ratio, I turn the bleach handle to line up with the the 10/90 notch. Same applies to 25/75 ratio, it has its own notch. Need a 50/50 mix? Open both valves all the way. No matter what ratio you are looking for, the water valve stays fully open. You use the bleach valve to adjust your mixture. The notches do allow for 100% repeatability! You can put as many notches as you want to get your desired mix ratio. 3 is enough for me. If Im looking for roughly a 15/85 ratio, I will simply line up the valve between the 25 and 10 notches. Same applies if Im looking for a ratio between 25 and 50. Line up the valve between the 25 and full open notches If you absolutely need a 2.5% mix and need to be dead on balls accurate to the drop, then you may want to get a $100 GF valve for your bleach side…… And there still is NO guarantee your going to hit your mark every single time. If you need a 50/50 roof mix, are we really going to cry if it turns out to be 48/52 ratio?
The suction for my soap is quite simple. XJET components! You will need a Xjet hose barb and their little plastic multi colored proportioners.
You simply dump the Xjet hose barb into your soap. The proportioners determine how much soap you want to suck since they have very very small holes. The proportioner holes vary in diameter size from .010-.128. The largest proportioner opening is 1/8” (.128). With 14 proportioners to choose from, you will be able to choose your soap setting.
You really only need 2. One for a general house wash and one for a roof wash. If you need to switch out the proportioners, simply pull your hose from your soap container and swap out the proportioner. YES, its that simple!
Now your soap needs to have somewhat of a water consistency. The Pro-Mix-Alot V2 will NOT suck the thick soap that we all use from our vendors. Get yourself a milk jug, juice container, or even a 2.5gal SH container from the pool store. Fill it with about 1/3 soap and about 1/2 with water, shake and place your soap hose in the container. This will break down the soap from its thick consistency and allow the Pro-Mix-Alot V2 to suck it through the soap line.
The hoses for your bleach and water need to be the same length. A few inches off is no big deal. But one at 5’ and the other at 7’ is a NO-GO. The pump will suck more from the shorter hose and screw up your ratios. For me, my water tank hose is 7’ long. My Bleach tank is 3’ from my Pro-Mix-Alot V2. Seeing as how both hoses need to be the same length, I took the bleach hose and coiled it a few times (like when wrapping up a extension cord), secured it with zip ties and let it be. Now both water and bleach have 7’ hoses. The (3) check valves do have Hastelloy springs. So they will last! The Banjo Micro Valves do have FKM internals. This is A+ for bleach. So they will last! The rest of Pro-Mix-Alot V2 is made from SCH 80 Banjo parts. They are bleach resistant. So they will last!
Unless your using a 1” or larger pump, you need to stick with 1/2” fittings and heres why. I originally went with 1” fitting for all components during Version 1. It worked somewhat, but was NOT reliable. Reason why? With (2) 1” hoses being sucked from, your essentially sucking from a 2” hose (if your doing roof mix) or 1.5” hose if your doing a 25/75 ratio.) The majority of us have small 1/2” pumps. They don’t have enough suction to suck from anything larger than a 1” of pipe. Aint happening. Thats why you see this setup is with 1/2” connections that way if your doing a roof mix, with your valves fully open your essentially sucking from a 1” tube. Need something less potent, like a 10/90? Well, your water valve is still open fully and you have your bleach valve cracked. You are sucking through no less than a 1/2” hose. So with a 1/2” pump, you wont starve it for liquid.
With all the parts purchased, I have about $120 invested in my Pro-Mix-Alot V2 and I can get any bleach ratio I want.
A BIG thank you for the members, whom I wont name that gave advise and what not on this build. They saw the success and chose to have me build them one as well. There are now a total of 4 (including me) Pro-Mix-Alot V2’s out there in the field making all of us money! If you want to save money on your SH, then this is the way to go.