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A few days ago I removed the "dummy cell" & replaced it with the SWCG. The dummy cell had been in place for the past 6 months. No issues whatsoever. When I put in the SWCG, I discovered a leak through the tightening ring on one of the half unions. I assumed that the baffles in the SWCG was...

I have a Pentair MasterTemp 400 heater for my spa. Recently the heater will not fire when the eater temperature falls below the set temperature. I rebooted the system & the blower came on, but again the heater would not fire. There were no error codes on the heater's display; only the...

I have been using Chlorox Calcium Increaser. Is this product calcium chloride or calcium chloride dihydrate? I cannot find any indication on the packaging. Thank you.

The CH in my in-ground gunnite spa has been relatively stable over the years. However, in the past few months I noticed that the reading drops from 300ppm to 250ppm weekly. All the other chemistry levels are fine. What might be causing this? I have been purchasing Calcium Hardness Increaser by...

Several days ago I discovered that my Pentair MasterTemp 400 heater shut off before reaching the set temperature. This was the case in both the general filtration mode & the spa mode. Having had this issue before, I discovered that the thermal regulator was corroded & would not open. So I...

I ordered a Pentair Thermal Regulator (Pentair part # 77707-0010) from Amazon for $32. I checked with my local pool supply store & was quoted a price of $125. After a quick search of other online parts suppliers, the price seemed to range between $95 & $125. Now I am a bit suspicious that...

I noticed that the heater would not fire when the water temperature fell below the set temperature in either the spa mode or the general filtration mode. In the general filtration mode, the heater blower did not even try to run & there was no error code on the heater display panel. When I select...

I have an auto cover on my spa that needs to be replaced. When the cover was installed about 7 years ago, it had a wrinkle running down the middle. I was told by the installer that the cover material would stretch out. Unfortunately, it never did. Subsequently, the material started to separate...

I have an Easy Touch 4 control panel. I want to replace the faulty SpaSide 4-button controller with either a Pentair #520546 (4-button) or #520547 (8-button). I assume that both controllers will work with my system. If I opt for the 8-button controller, which other pool functions can I add...

On another thread in this forum I indicated that my SpaSide unit was acting erratically & would likely have to be replaced. Rather than replacing the SpaSide, I am considering switching to a Screenlogic. This would allow me to access various functions of my spa remotely. However, some basic...

My iS4 spaside control has been functioning erratically lately. At times none of the 4 buttons work. Until I eventually replace the unit, I want to be able to change the pump speed from 1,700 rpms (for general filtration & chlorine production) to 2,500 rpms whenever I use the spa. Generally I...

I have a Spa Side (IS4) connected to an EasyTouch control panel. Today I noticed that all 4 buttons on the Spa Side would not work. On the control panel (Settings>Spa Side) I toggled the Spa Side to OFF; waited for a few minutes; then turned it back to ON. All of the buttons on the Spa Side...

Last summer when the air temperature was about 100F, the motor for the pool cover would stop several feet before the cover was completely closed. I was able to switch the motor on & off several times to close the cover. Of course when the cover installer came to check on the problem, the motor...

I have a covered, in-ground SWCG spa. Today I noticed that the level of FC had dropped from about 5ppm to virtually 0ppm over 4 days. The spa had not been used & the air temperature has been unseasonably hot (97 - 101F) during those days. In addition to increasing the output of the SWCG (through...

I have a rust-colored stain around the small water outlet (not the jets) in my in-ground spa. My initial assumption was that the iron content of the water was high. But we are on city water, as opposed to well water. Any thoughts would be most appreciated. Thank you so much.

I have a Pentair MasterTemp 400 spa heater. Yesterday I noticed that the water temperature of the spa was below the minimum set temperature of 77F. The heater light on the EasyTouch control panel was illuminated; but the heater itself wouldn't fire. On the readout display on the heater itself...

Has anyone tried a cleaner called Filter Blaster? Is it worth the $? In the past I used a soak in a water/muriatic acid solution & then sprayed with a hose. Thank you.

I have a 10' X 14' inground spa with a Cover Pools Autosave Safety Spa Cover. Until I get the ropes replaced, I need to be able to close the cover manually. Can anyone please tell me how I might do this? Thank you so much.

During the recent heatwave here in the West, during the day the auto cover on my spa will neither open nor retract without continually stopping every foot or so. This seems to be temperature-realated since the problem does not seem to occur during the evenings. The auto cover & motor were...

This is just a curious question. I noticed that ads for the Pentair IC20 SWCG include a so-called power center. Since my SWCG plugs into a Pentair EasyTouch control panel, is the power center for the SWCG inside of the EasyTouch? Thank you.

I have a Pentair IC20 SWCG. During the past month, the readout on my EasyTouch control panel indicated "0 ppm" of salt. However, my test kit showed a salt level of 3,400 ppm. By rebooting the system, the SWCG apparently starting "talking" with the EasyTouch & indicated the proper salt level...

I just noticed that the threaded twist knob of the union connecting the incoming PVC pipe to the Pentair heater has a large crack in it. To replace the union I will need to cut the incoming PVC pipe & replace a 90-degree elbow & the union itself. My question is: Is the PVC pipe (& fittings)...

My Pentair IC20 SWCG is connected to a Pentair Easy Touch control panel. I noticed that the readout on the SWCG indicated a low salt level. The diagnostic info in the control panel showed "0 PPM". Didn't seem right since the salt level aways ranges from 2,800 - 3,400 ppm. So I checked the salt...

I recently noticed that my Pentair MasterTemp heater is cycling on & off without reaching the set temperature. Also, when the heater cycles off, the "Service Heater" light goes on. Any idea what the issue might be? I admit that the heater has not been serviced since I bought it new about 4 1/2...

I have a Pentair Variable Speed Pump & 4 cartridge filters. The filters are about 4 1/2 years old & are cleaned every 6 months with a hose. The dirt build-up seems to be minimal & there are no cracks in the filter material. Also, the rubber end caps seem fine as well. Since the pressure in the...

I have been ordering my chemicals from tf testkits for several years. I am very satisfied with their service. However, I could not help but notice that the bottles of Taylor-labeled chemicals (available on Amazon) appear to be identical to those from tf testkits. Are they indeed identical?

I have a 2,500-gallon in-ground spa with an auto cover. I have all Pentair equipment that was installed about 5 years ago. Although the cartrige filers are the original ones, they are cleaned 2-3 times each year. When the pump is running daily on the general filtration cycle, the pressure at the...

Today I added some liquid bleach & muriatic acid to my 2500-gallon inground spa with the pump running at about 3,200 rpms. Nothing unusual. However, for the first time, I noticed that there was a layer of foam bubbles on the surface of the water as the jets were running. When the jets were...

The CH in my 2,500-gallon in-ground spa has a tendency to creep upward over time (from about 250 to 375ppm in 3 months). I try to keep the level in the 200 - 400ppm range. Since we do not have hard water, I am curious what might be the cause. The chemistry is checked & balanced weekly & the spa...

I have a Pentair Variable Speed Intelliflo pump that suddenly stop working. I tried to start the pump through the Pentair Easy Touch control panel as well as with the SpaSide buttons with no luck. Finally I switch the Easy Touch panel to Service mode so that I could start the pump directly from...