SWG questions?

[retfr8flyr]

I have been researching possibly going with a salt water generator system in my fiberglass pool. I know it's supposed to be great with fiberglass but I have a question specific to my situation. My poois surrounded by concrete paver stones. Here is a pic from when I first opened this spring.









I am concerned about salt corrosion of the stones after all I have read about corrosion with concrete pools. Does anyone have any experience with pavers and SWG pools?

 

[mknauss]

No issues. We have the same setup here in the Southwest Desert. Hot. Salt has not impacted anything in nearly 3 years.

Good luck.

 

[ckk81]

Up here pavers see a lot of salt for deicing walkways. I don't imagine the low salinity pool water would be a problem.

 

[retfr8flyr]

Thanks for the responses, I didn't think they would be any problem but wanted to here from people that have them. I am on county water and the CYA is about 60 right out of the tap. I am always fighting to keep it down to manageable levels with my chlorine setup and I think going to SWG system may be a help. I am still researching and trying to find the best system to go with. The Hayward system gets good reviews and I have always had good luck with their products. Anyone want to make a recommendation for an SWG system, for conversion from chlorine.

 

[retfr8flyr]

Well I ordered the CircuPool RJ-30 Plus today. I hope the changeover goes smoothly when I get it installed. Anyone with this SWG is welcome to jump in with information.

 

[mknauss]

Tap water has 0 CYA. You will need to get at least 60 ppm CYA in the water to keep chlorine loss manageable.

 

[Donldson]

Mknauss is correct, tap water does not have CYA in it. How are you getting a reading of 60 from it?

 

[retfr8flyr]

I took a sample from my tap and used the CYA procedure in my T-2006 kit and it came out at 60. I did this test because I drained 1/3 of the pool and the filled it back up 4 times in the last 2 weeks, trying to get my CYA down. I will change 1/3 of the water and my CYA will only drop about 10 points. That is why I checked the tap source. I will do another test tomorrow and see if I made a mistake. Regardless I will be switching over to the SWG system with the new CircuPool.

 

[AimeeH]

This sounds like testing error.

Tap water should have no CYA.

 

[jblizzle]

There is no "should not" about it. Tap water 100% definitely has 0ppm of CYA.

 

[JamesW]

If you get a reading on tap water a second time, test some bottled water to see if you get a reading.

 

[duraleigh]

tap water has no CYA....period. Your test results are in error. I don't know where the error is but I know you have 0 CYA in your water

 

[jblizzle]

Does the water look milky out of the tap? Could just be air bubbles.

 

[JamesW]

Try doing the test with just tap water and no reagent to see if your water is just too cloudy to get a good test.

Also, pour a tiny bit of acid into the cell to clean it. Over time, the black dot becomes clouded by melamine cyanurate .

 

[retfr8flyr]

Well you guys are correct. I tested the tap water again today and it's zero CYA. I don't know what happened when I tested it the first time but I had to have made some kind of mistake. After another 1/3 drain and fill my pool CYA is now down to 50, so I can make the changeover to the SWG when it arrives. I stopped using tablets this year and just use liquid chlorine, so it should stay good until I can get the SWG installed.