Spurlington
Member
I dont see how you can siphon detergent through this pump .. has anyone changed the unloader to have the ability to siphon detergent?
That thing looks neat. I don't know what it is, but I think I can break it.
Do you already own the Otter? Are you needing it for pressure washing? How often will you need it?
At the cost of an Otter and if I used it infrequently, I'd rent it from the rental store.
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I was thinking doing gravity fed mixed solution
You can go with any type of pump rigged like you have in the picture. One thing to keep in mind is unless you put a bypass back to the solution tank, your pump will overheat in a couple of minutes if you aren't on the trigger. If you look at my picture of my pump, you will see a green hose. That is the suction hose. Then the clear hose is the bypass hose. When you are off the trigger, the solution is continuously circulating. The red hose is a prime hose controlled by a shut off valve. When you first start the pump, because it is not a gravity feed, you have to open the priming valve until all the air is exhausted, when you close the valve, the pressure gauge will register the set psi. If it jumps around, it's not fully primed yet and open the valve a little longer.What pump should I get if Im looking to do tile n grout with a 50ft solution line and possibly carpet with 150ft solution line .. gotta be electric.
Are you you using a mixing tank with that Bob?I have the otter and I added chemical injection to it to include a Dwyer meter. It has worked flawlessly for 10 years.
I will post the particulars later if you are interested.
Are you you using a mixing tank with that Bob?
we are all interested.I have the otter and I added chemical injection to it to include a Dwyer meter. It has worked flawlessly for 10 years.
I will post the particulars later if you are interested.
I gather you are saying that the chemical injector works when connected to a faucet. I have never been successful in doing that as the incoming water flow is greater than the outgoing discharge. Does that injector pinch down the flow somehow?
Very niceWhen using this setup it does not sacrifice ANY flow going to your wand, that's why the Dwyer is added. You have also converted this pump to always being primed, so you can even draw incoming water from a 5 gallon bucket, fresh water tank, or a faucet, all features that the pump itself does not possess.
The pump also runs dual wands. We have done this with a 2" wand at 8 flow, and another wand at 6 flow, for a 14 flow total, with no noticeable drop in flow/pressure when cleaning.
A simple tweak of the knob for faucet or fresh is all it takes to set the incoming flow of chemical.
This setup works just as well as the Cat pump in another dual wand TM we use. The Cat pump will pull prime by itself.
OK, here it is.
View attachment 70772
This is a J. E. Adams #7650 injector, 3/8" ports, installed just before the incoming water port on the 356 Pumptec.
View attachment 70774
On the other side of the injector is a 6' long piece of 3/8" hose that acts as a primer for the pump so it can operate gravity fed from fresh water tank, or will operate connected to a faucet under pressure. There is a brass one way check valve at the end of the 6' piece of incoming water hose, so the pump keeps it's prime even when disconnected from a water supply. This pump alone will not prime itself, but with the leader hose and check valve, it will.
The clear tube comes out of the injector and goes to the Dwyer meter. The 7650 has to be adjusted to either gravity fed, or pressure fed from a faucet, so it accurately injects chemical into the incoming water stream. The 7650 adjuster is a knurled knob on the injector with a locking nut so vibration will not affect the setting.
The second pic shows the modified front of the Otter in order to install the Dwyer on the front of the pump.
With this setup you have a very powerful pump as it puts out 3.5 GPM.
Actually I do the same thing with the vinegar on occasion in both truckmounts.I also run detergent through all my pumps whether truck mount or portable. I do flush with vinegar once in a while to remove detergent residue. Most extraction detergents have anti corrosion elements built in.