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  1. J

    Finally installed home made automation to include variable position valve control.

    Hey Rich…that transducer looks pretty nice! And it’s also nice that you have a “signature” psi to keep track of the zones. Be careful on the “absolute” number of 13 psi. That pressure will change as your filter clogs up…or is cleaned. You might need to figure a way to use a differential...
  2. J

    Arduino Solution for Failed Pentair Intelliph

    Hey Jack, I am following this as well. Some comments… I have found the muriatic acid (I use 32% in my tank) to be extremely corrosive around my buried acid tank. It has destroyed my buried tank hinges, a stainless steel temperature probe, and four “chemically hardened” Milone eTapes (at which...
  3. J

    Effective Pool Cooling for Hot Climates

    Wow…that is a huge difference from the 93F you reported from last summer. I have the same problem in Phoenix with full sun for my pool from late morning and on…I have been debating/planning to add some sun sails above my pool for a few years. This is another potential “pro” for considering...
  4. J

    Retractable, Removable Pool Equipment Cover / Sun Shade / Protection

    Joe, take a look at the first post pictures…the sun shade material does NOT extend over the filter and panel covers, so they get direct sun.
  5. J

    Finally installed home made automation to include variable position valve control.

    Rich…I think the approaches we have taken towards automation are very different. My background is microcontrollers and so the approach I have taken is to design the pool controller (hardware/software) as a module that operates independently and directly controls the valves/pool...
  6. J

    Finally installed home made automation to include variable position valve control.

    Only in experiments and for relatively short periods of time. Attached are the specifications for my intermatic actuators (see duty cycle)…what I am planning will probably exceed these specs. Similar to what you are doing, I am going to cycle my IFCS/walll return valve ONCE during the zone UP...
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    64BAD350-73A9-471B-A673-0BA5B307C653.png

  8. J

    Automated Testing

    I’m still in Pinetop so I’ve missed it all…but we’ve had some doozies here as well. Thanks for the update…ORP might work for the purpose I’ve had in mind.
  9. J

    Finally installed home made automation to include variable position valve control.

    Rich…I haven’t updated that thread in quite awhile but plan on doing so at some point. I’ve made quite a bit of progress beyond that thread. I’ve been working towards a goal and have taken a lot of little steps but so much more to do and so little time, haha. I don’t know if you followed...
  10. J

    Automated Testing

    Hey Ron @MyAZPool , I’ve been really hoping that you might be the “tinkerer” who finds out something useful to do with ORP numbers and higher CYA levels (I am running CYA around 60 but might eventually go up near 80-90). Like you and others, I plan on adding a couple of the Atlas probes but the...
  11. J

    Finally installed home made automation to include variable position valve control.

    Hey Rich…nice! My setup also allows me to postion valves to any location and I use it in my scheduling and testing. It uses the same basic mechanism as yours (timing and relays) and I have found that the movement of the actuators is VERY linear and predictable based on the time that current is...
  12. J

    Arduino Solution for Failed Pentair Intelliph

    Jack…this discussion is related, but not necessarily 100% relevant to what you are doing. Should be a fun project… https://www.troublefreepool.com/threads/stenner-pump-controller-automation.203338/
  13. J

    Dynamic GPM Calculations

    Ron...thanks for the pointer to that thread...I had missed that one. I haven't really considered moving to the digital FlowVis...I think I am going to get accurate GPM numbers using the method that the pump guys have been helping me out with. But, I DO like the digital FlowVis results that...
  14. J

    Dynamic GPM Calculations

    Hey thanks Mark. I was already looking at adjusting those numbers slightly to "match" my data. But, after that "gasket movement" on my FlowVIS, I am going to step back and make sure the FlowVis numbers are valid before moving ahead with this project. I really do like the idea of "one...
  15. J

    Dynamic GPM Calculations

    Hey Mark...I found a problem with the spreadsheet I posted. There is a gasket on the FlowVIS check valve that had worked itself loose in a couple spots. It was dangling "out" on a couple portions of the paddle that were near the "end" of the paddle. That led to "increased GPMs" being reported...
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    1625777450171.png

  17. J

    Dynamic GPM Calculations

    So I've looked at more of the data (with graphing) and I see what Mark was talking about regarding the accuracy of the Watts>GPM calculations vs the Head(PSI)>GPM calculations. Calculations using the dynamic Head seem to be more reliable over a larger RPM range. Calculations using the wattage...
  18. J

    Dynamic GPM Calculations

    Mark, I took some additional measurements this morning and finished putting all that raw data together. Once again, I have also changed the methodology to "step through" the various points in the curve and record them. The link to the raw data in google sheets is at the bottom of this post...
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    Screenshot_20210630-122702.jpg

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    PXL_20210706_152956791.jpg

  21. J

    Intellicenter Automation and SR Smith Light Control

    dw, SR Smith lights only have the two wires going to the LED. I looked into being able to control all those millions of colors with my controller and they have a patent where they modulate a high speed signal onto those wires to send any additional information down those wires with their...
  22. J

    Dynamic GPM Calculations

    Yeah I have heard that a few times...my response since I have tuned it: I really like my IFCS and it has provided cord-free and tube-free cleaning for 27 years...and NOW, it is actually very cost effective as well. Not when compared to the run time of Mark's system though... haha.
  23. J

    Dynamic GPM Calculations

    Absolutely...but let me clean it up a bit. The charts are being extracted from Excel...although the raw data is captured in Google Sheets which I am not as comfortable working in. So I could share a google sheet with all the raw data and/or email? an excel sheet. I changed a couple items...
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    1625447817553.png

  25. J

    Dynamic GPM Calculations

    Mark, I picked up a bunch of these PSI gauges on eBay for cheap ($17 each), and although used, they work very well. These gauges (after a one time adjustment in software) read at almost zero (+/-0.1) consistently when the pump is off. I don't have any numbers at full speed...I haven't run at...
  26. J

    Dynamic GPM Calculations

    Sorry guys, I'm juggling a few things today around the house. Thanks for the comments. James...it takes a while for me to digest things as Mark can testify too. I'll do my best to keep up. Unfortunately, the desired result (a clean pool at the lowest cost) is very hard to measure. I was...
  27. J

    Dynamic GPM Calculations

    Oh Mark...did you have to post that? Haha...too much information. I've also learned a few thing since then...like the power numbers from my EcoStar are not even close...especially at lower RPMs. Actually, since that series of post and the changes I made to the system...I have been really...
  28. J

    Dynamic GPM Calculations

    I see there has been some activity in this thread while I was writing this post...haha. Thanks for the comments James! I haven't had a chance to look through it yet, but I will go ahead and post this. Thanks again, Mark. So I plugged the data into the formulas. I currently have four...
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