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    Pentair Mastertemp 400 - Ghost in the Machine - Membrane Pad?

    Conclusion - The new Membrane Pad came today. I plugged it in and problem solved. The Pentair Mastertemp 400 heater turned on and stayed on with no weird gremlins. Ran it for several hours on both the spa and pool mode with no hick ups. As a preventative measure against future failure, I put a...
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    Pentair Mastertemp 400 - Ghost in the Machine - Membrane Pad?

    If the problem still exists after replacing membrane pad, that will be next to check on my list. Thanks! Quick update - After Tennis today I wanted to use the hot tub (Spa). Put on the heat and the same thing happened, it starts and kicks off after the Spa light switches to the Pool light with...
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    Pentair Mastertemp 400 - Ghost in the Machine - Membrane Pad?

    The heater works, then it doesn't work. Runs for 5 minutes, then shuts off and tries to turn on then sometimes successful, sometimes not. But no error codes. Hmmmmmmm. What could it be? It is very hard to diagnose an inconsistent problem. However at this point, I am pretty Dang sure it is the...
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    Anyone still swimming?

    Its been a colder than normal in SoCal and my pool has been in the 66 degree range with a cover and solar that hasn't done much good recently. But the other day we had warmer weather and my solar helped a little getting water up to 72 degrees. I used the heater to kick it up to 78 and we are...
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    Pentair IC40 Issues - ICHLOR 30

    I now have to replace my second IC40 flow switch within 2 years. History: Pool Built in 2016. In 2017 I had to replace the flow switch on the original IC40. I chose this aftermarket one which is worked fine...
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    Considering a Solar Blanket

    A solar covers main purpose is to prevent heat loss from evaporation. My best guess is that a pool cover will help raise your pool temp by about 3-5 degrees which can be quite significant.
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    What's your current pool temp?

    For the last week morning low temps have been 86 with daily peak temps at 89-90. This is with a cover and solar panels.
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    Solar Panel Installation on Metal Roof - w/ Pics

    Well, yes and no. Yes because obviously what you said is true. No because if your 50% coverage panels heats the pool up to 88-90 degrees which I will call the upper limit, and you don't want your pool any warmer, then there is no way to store the heat and the extra heat from additional panel...
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    Solar Panel Installation on Metal Roof - w/ Pics

    On solar panel sizing - pooldv, I noticed that your pool is 20,000 gallons and yet you only have 240sf of solar panels. While I don't know your surface area, my pool is 11,500 gallon and 432sf of surface area with 200sf of solar panels. The result is that my ratio of solar panels to pool surface...
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    PH keeps rising

    Is your pool new? PH rise is greater on new plaster pools for the first year.
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    Solar Panel Installation on Metal Roof - w/ Pics

    http://www.h2otsun.com/PG5ht.html The above link will help you understand the installation process. I also used their products. It took quite a while for me to wrap my head around all of the plumbing required. I have not installed my PV panels yet, but used the roof seam clamps on the water...
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    Solar Panel Installation on Metal Roof - w/ Pics

    Results: for the last 6 months I have been tracking the results of my new solar panels. I even bought one of those cheap infrared heat measurement guns to measure heat on the roof. As of the last week daily high temperatures here in Long Beach have been only 69-70, but it has been sunny. Yet my...
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    Calcium levels in Plaster SWCG pool

    Good point with a TA of 200 PH should be much higher than 7.2 and always floating up.
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    Calcium levels in Plaster SWCG pool

    I should have added that my CH is 400 and I am getting no calcium chips. I believe the calculated CSI is the overall determining factor with regards to CA buildup, and the biggest contributing factor to a high csi is ph. But your csi is very low right now. Did you just drop your PH?
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    Calcium levels in Plaster SWCG pool

    Hmmmmmm....... My SWG used to spit out calcium chips as well. My assumption was that my calcium level was too high, but my conclusion was that my ph was too high allowing scaling. Once I the pool got past the one year mark and I lost my fear of using MA to keep PH under control I haven't had...
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    solar or gas for heating. your thoughts if you would

    I live in Long Beach, CA, so similar weather to you, however, you may get a little more sun, not being near the beach. I have a spa, and the most panels I could add on my roof was at 50 percent coverage (solar panel sqft / pool surface area sqft) For me the proper order of adding items to heat...
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    Brand New

    The other possible reason why your PH keeps on floating up even with a low TA is that a new plaster / gunite pool tends to produce a high PH for the first 6-12 months. This was my experience for the first year. I let my PH regularly float up to 7.8 to 8.0 and started developing scaling in some...
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    Designing saltwater filter system Florida

    B-rad, I would suggest getting an easy touch 8 panel to control they system if you are going to add solar later, as this panel can handle complete automation of a solar system. This maybe overkill, as it handles other functions like lights and spa, but if you are considering solar, you will need...
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    Pentair ic40 - salt reading Zero on phone app

    Yes, I can still control the pool and spa percentages from the phone app and the display on the cell does show the same settings as on the app, so communication is still there. Every aspect of the phone app is still functioning and pool / spa equipment responds accordingly. Diagnostics from...
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    Pentair ic40 - salt reading Zero on phone app

    Everything seems to be working. The cells panel shows salt good and status generating. Plus I have verified that the cell is actually generating chlorine by testing water from the inlet. The pool FCL is 6.5, but with the cell on 100%, the water at the inlet reads 9.0. So everything says that the...
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    FC/CYA as a Function of Season & Covers

    In my 18 months of pool ownership I have learned a lot from this forum. One is that guidelines are just that guidelines. The CYA recommendation for an outdoor SWG pool is 60-80. But what about winter when the sun is about 1/2 as strong, or even during the summer when a cover is on the pool for a...
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    Calcium Hardness Issue (low)

    I had the lamotte test kit as well. It worked well for all test except for CH. Just like you when my reagent expired my CH reading was very low. I made the mistake of adding too much CH because I trusted the color Q. When I got my new reagent my CH reading went from sometime in the low 100’s to...
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    SWG - Range of FC and Equalibrium

    Needsajet, Thanks, that answers my questions. I will be ok with running a higher FC rather than always trying to get down to the lower limit.
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    SWG - Range of FC and Equalibrium

    Is it a correct statement that the sun burns off a percentage of FC everyday versus a fixed amount of FC? If this is the case then my SWG should reach some type of equilibrium with regards to FC and then based upon sunny days, pool cover and contaminates there should be a range of FC that is...
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    SWG tested fine but inaccurately reading salt level

    I run a Pentair Intellchlor ic40. As a general rule, I do not trust it’s reading. From what I understand this unit measures salt by the conductivity of the water, not by measuring salt content. Further the warmer the water the greater the conductivity. Reads from 2,800 to 3,900 depending upon...
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    Is it really that easy?

    I believe it is easier for you to take care of your pool than it is for a pool service that only visits weekly to take care of it. When making adjustments to determine what your pool needs readings only once a week is not enough. So if you believe that one visit a week is not enough then taking...
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    Solar Panel Installation on Metal Roof - w/ Pics

    Good point. I can only imagine that the plumbing requirements would be very complex, if header pipes were required at each panel and runs were limited to the length or width of the panel. In addition installation and / or servicing would be a tough job. I would imagine it should be used only...
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    Solar Panel Installation on Metal Roof - w/ Pics

    So I did read the hot sun link above, however it doesn't sound like it is ready for prime time yet. I have been looking into PV solar panels, and the specifications on panels calls for air circulation behind them to keep them cool and therefor more efficient. I can also see how putting water...
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    What's your current pool temp?

    Water is 84 degrees and lovely on a sunny 76 degree day in Long Beach CA. Digging my solar panels after their first week in service. It seems like they add about 4 degrees to the overall temp. It will be interesting to see how swimmable the pool will be come January. Fingers crossed.
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    Solar Panel Installation on Metal Roof - w/ Pics

    Last year my pool was built and I have to say that I have thoroughly enjoyed it. So much so that I used it year round and spent quite a bit heating it during this last winter. After all it is Southern California and by the beach winters are milder than inland. But my dilemma is that I like my...