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Finally a week later someone gets back to me from Xylem. He does not recommend those pumps as a solution but didn't give a reason.

Maybe it is still rare.

Interesting. Why do you think that happens? Maybe it runs longer because of ring blow-by?

Judging by the color, logo, location, and the fact that there is a space between the words I would say it is not the WashWorld most of us are familiar with.

When the valve is closed it is about 48 psi in the bay but goes down to a fluctuating 5-8 psi. Not surprising with all those holes.

I ran it with an open 1" line out in the bay and it put out 15 GPM @80 psi and 13 GPM @50 psi. That seemed pretty good to me considering the long runs and lift. They do use a lot of air though.

I believe they set it to start 15 minutes after not washing a car. We can change the delay time and how long each zone runs. If we are stacked with cars then it doesn't run. The days when we will get the trickle business there will be lots of RO water usage.

Two double Flojets running @50 psi air supply. The presoak arches are not plumbed yet so I "borrowed" the Flojets to try this experiment. One of the pipes is not clocked correctly so it sprays straight down and misses the window. The others look decent. I plan to hook it up to the other side...

We are upgrading our RO system from a double membrane 4,400 GPD to a triple membrane 6,600 GPD. It is a 21 year old Propak with a 3 HP pump from Huron Valley Sales. I talked to Fred there and he said the pump is large enough for the upgrade. The feed, reject, and product water rails are all...

Technically it would be four Flojet pumps with two of the doubles and 20 GPM. Wouldn't the RO water eat the sprinkler pump's cast iron impeller and housing?

The spot free arch has 17 #4005 spray tips and there are six window washing zones. Four zones have 75 .078" holes drilled into the 1" PVC pipes (washing five windows) and the two zones near the exit have 90 holes. (Washing six windows)

I'm concerned that one pump may not be enough flow for the window washers. I can adjust the time the solenoids are open but the water might just trickle out of the holes and now be very effective. I guess I could experiment with one though. Was the 16' of suction hose the total length or the...

This one is cheaper I assume because of the Santoprene diaphragm vs the Viton. https://www.kleen-ritecorp.com/p-3420-flojet-g257501a-air-powered-10-gpm-dual-diaphragm-pump-100-psi-santoprene.aspx

I didn't look into it but the Goulds pump looked like a shallow well pump and would think it would be fine after priming and of course a good foot valve. Maybe not the most reliable solution though and expensive to replace if ran dry. Using two double diaphragm Flojets is an interesting idea and...

Thoughts on this? https://www.kleen-ritecorp.com/p-37557-goulds-lb1035-stainless-steel-booster-pump-1-hp-3-ph-20-gpm.aspx

We need to find a pump solution for our spot free arch and glass building window washing system. When we bought our new machine we did not buy a pump setup because we have an underground 1,500 gallon RO water storage tank and needed a custom solution. Autec usually uses a gravity fed pump from...