Recent content by MCT

Mknauss, I’m looking to replace my globrites (6 pool + 1 spa). Considering FS (small units) and PAL Treo Retro, also direct replacements (but need 4 wire versus 2). Benefit of the PAL is it clones the Pentair/Globrite automation although you must use PAL transformers (I’d need two). My bigest...

So I went ahead and installed the DE filter after my current sand filter. We were surprised that the back pressure only increased by about 1.5 psi. The skimmer flow appeared to be unchanged, so we didn't increase the pump speed. Both filters have a three way valve on their inlet so I have the...

Here's what I found out. My water softener is a two tank system, where water flows through both tanks normally, and switches to one tank during regeneration. So regeneration shouldn't be the source of the staining. We have evidence of slight iron bacteria. Our water guy sent a water sample to...

So my water is less than 1.5ppm both pre and post softener. What I don't know is the breakdown between ferric (treatable with filter) or ferrous (treatable with softener). I have a water "specialist" coming out Tuesday to review the situation. Without seeing the staining yet he isn't ruling...

Thanks Joyful Noise. I took a sample to a water "specialist". He tested 1.5ppm before softener, and "trace" 0.3-0.2ppm after softener. So I can purchase a kit with lower resolution.

Yes the autofill is tied to the soft water. Along with the pool, we added a 1200 SqFt pool house and 300 SqFt equipment room. So all the new construction is fed with soft water. I don't know my pre or post water softner iron content (yet). I'm looking for an iron test kit, but the Taylor...

I keep the pool covered most of the time. I shut off my autofill so I can monitor losses. I don't think I have ever seen more than 1" loss in a week. We have a whole house water softerner, and RO systems at three sources of drinking water. I just beleive that the softner isn't removing all...

Hi NeedMoreSun, Thanks for the information. Can you tell me the manufacture of your RO system and in line TDS meters?

Our make up water source is a well that contains iron, which I beleive is the source of some iron staining. I am planning on treating the existing iron stains with the ascorbic acid procedure and then sequestering the iron using an agent for the remainder of the season. After opening next year...

So what's the downside of trying a sand pre-filter (it's a sunk cost now) and adding a DE filter (cost not being a factor)? Wouldn't the time between DE backwashing increase?

Yes, CC=0.3 is a store number, but also correlates with Taylor test using 0.2ppm/drop resolution. The IntelliChem recommends CYA < 30, as do some TFP users who utilize the IntelliChem. This controller worked great last year with the CYA in the 30 range. This year the controller is struggling...

Tim5055, I'm using a Taylor 2006 test kit daily, and our pool builder tests water samples twice/week at their store. Generally we are within TFP specs (with the exception of CYA which we keep lower due to the IntelliChem accuracy) but don't always have sparkling water. We have 6 LED lights in...

Hi All, I'm currently using a Pentair Triton II Sand Filter. In an effort for better water clarity I'm considering switching to a DE filter. The Sta-Rite System 3 Modular D.E. Filter S7MD72 system uses a "cartridge" style system to suspend the DE rather than a "grid" system. Two questions: 1)...