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Do the NXT2 timers use the same wiring configuration as that old timer? I have never put one on an old powerhead. They definitely use a different transformer.
I would have to see the harness on the one you have to know which one would be directly compatible but the two current timers are the SXT and NXT models. Try this site for parts:
https://www.softenerparts.com/fleck_9500_parts
I don't disagree with you but that is how Fleck has been doing things for 80 years. I really don't mind because Fleck valves are what I cut my teeth on and now no one else in my area knows them like I do. They for sure can be a b**ch sometimes but Clack valves are so easy it's almost like...
The part numbers should be printed on the plastic packages the pistons came in. A wrong part should not be installable? Try and tell Fleck that! Wait until you get into the HWBP and NHWBP pistons.
What Dan said!!
For example: the Filmtec TW30-4040 is rated for 2600 GPD. That is based on running for all 24 hours of the day, but that works out to 1.8 GPM. The manufacturer rates the flow based on the treated feed water being 70 degrees F. but it also has to do with pump output pressure...
I agree with everything Buckeye/Russ said. Just to tag on some additional info to his last paragraph regarding pre-treatment:
Hard RO feed water will cause a drop in production (GPM) and an increase in system operating pressure.
Chlorinated RO feed water will cause an increase in production, a...
A couple of things to note about the RO pre-filter. (This applies to all brands and makes.)
Filter type: Most of the filters on car wash ROs are usually 2.5" diameter x 20" length, 2.5"x 10", or 4.5"x10" (often called Big Blue). Regardless of the size, you should always use a melt-blown type...
Which part numbers are you dealing with? The Fleck 9500 is an 1-1/2" control valve and does not have a residential model. You might have a 9000 or a 9100 which are both 1" models. If you do have a 9500 the part you need is 60108-02
If you look at the pictures and read the posts, there is a pre-filter mounted on the wall below the RO. Also, pre-filters do not reduce TDS, they simply remove sediment which can clog a membrane. When you say you are "at a 50/50 split RO to Reject" that means your recovery rate is 50%. That's...
You can get a whole new pump/motor (Sta-Rite HPS10E) or you can get the rebuild kit (Sta-Rite P325-439), both from Kleen-Rite.
Blanco also makes a good point, it could be just air locked, but I wouldn't recommend turning the pump on until you've purged all the air from the stack. You can...
I've seen in one wash they actually had touch screen panels installed but the first one was busted within a week...because of what Dan said. I have seen though a couple times (in nicer areas) some panels that aren't touch screen but instead have an LCD screen display with membrane switch buttons...
If you have the right part number piston I would say it is highly unlikely that there is anything wrong with it (unless the teflon coating is damaged).