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RO system usually has activated carbon filter upstream of the RO membrane. Activated carbon does capture Chlorine. RO membrane does not tolerate cholrine well, depending on type of RO membrane If pool treatment, the RO membrane is very likely brackish water type. My friends pool when in windy...

Mark, It takes personal passion and log book worth some years of data to keep a pool very clean under commercial application or even personal use, if one wants to really benefit this forum BBB method. These pools are in Jakarta, yes. Even 5 star hotels in Bali or Jakarta, most of their pool is...

40 hours later......... :mrgreen: I think it will need another 1 day to regain its full sparkling glory. The last percentage needs lots of time. [attachment=0:s9ez1ete]Water 4 - 1PM today or 40 hours later.JPG[/attachment:s9ez1ete] .

I dont have metal test kit. I shall see what I can find. The old steel awning frame been dropping rust here and there for the past 2 years and when not vacuumed in time it stained the tile :roll: . Thanks for the heads up. SPP.

The assisting hardware........... [attachment=1:1mcum4f4]Assistance - 1 micron slime back after 20 micron cartridge filter.JPG[/attachment:1mcum4f4] [attachment=0:1mcum4f4]Assistance - 2nd pump. Total turnover is per 4point7 hours.JPG[/attachment:1mcum4f4] Let see if sparkling water can be...

9PM same day, 90% steel rust been captured. Water look like this............... :rant: [attachment=2:210fgbr4]Water 1 - 9 PM Day 1 water started to get dirty.JPG[/attachment:210fgbr4] Bombed to 10 PPM chlorine.................... Can't wait to see what tomorrow will bring :o...

Hello All, My pool been TroubleFree for so long. Have not superchlorinate for so long. Yesterday my pool got its new awning/shade and the amount of dirt I have to content with is a fun factor for testing. The old frames were steel. Lots of water enter the frames hollow. Lots of dust stuck and...

[attachment=1:j697qxo4]RS pool v4.JPG[/attachment:j697qxo4] [attachment=0:j697qxo4]RS pool v5 - underwater.JPG[/attachment:j697qxo4] I share my pool test kit with this friend. I think for my city's pollution level, I mean dirty dusty kind of pollution, a 5-6 hour turnover is good to have. SPP

Well, at 1.5 PPM FC and 25 PPM CYA, you can't smell the chlorine at all even with your nose near the water. The only way to smell it is by rubbing on our skin and let it re-act with our sweat , then very minor chlorine smell will come...very vey minor. That is the beauty. At near 5 PPM FC, I...

But i do see the pool water everyday, so I can tell if things are not right.

Hi Linen, The pool has a full cover shade, sort of gray plastic. I can open 30% of it. Only when the sun at west position, the deeper side gets direct sunlight at an angle. The shades do allow UV to enter I am sure. Its not those expensive shade with UV filter. I keep the CYA at 25 PPM only...

Glad you guys enjoy it. There is no jumping board sorry :mrgreen: The pool builder made that jumping platform, I suppose just for the look. There is something unique about being able to maintain high clearity at all times, its rewarding. No red eye, low chlorine level with ozone assistance, no...

aha, cool....... Nearly 50% of the pool is very shallow at 4 feet. For standing chest high. It is not all deep section. IYA [attachment=0:hgwp2f0w]a4.JPG[/attachment:hgwp2f0w]

Hi James, It is 13.2 feet deep. Its for dive training, so 4 meter is minimal. The shooting angle and the water clarity can be deceiving :mrgreen: Here is an underwater shot. Sorry for the poor quality photo. Me do not have SLR underwater camera with big strobes. This is a night shot , not day...

Forgot one thing........ Thanks to Duraleigh for making those nice test kit affordable. Local dealer don't stock FAS-DPD because no one buy them and they worry of the expiry. Sorry, no Taylor test kit available here too, only Rainbow test kit. With FAS-DPD one will never use the OTO again...

Hello Hello, Its been a year that I have not posted. I just want to say that , without this forum and the expert members, I could not have the best water clarity, comfort to the swimmer etc etc ( all the good things )........so thank you to everyone who have assisted me in 2009. When you spend...

Hello All, So good to be back. :cheers: Sea water contains salt easily 35,000 PPM and when it is clear, it is so clear that makes a clean pool look less sparkling :-D .

nice....... :mrgreen: How much the degass column cost Ke ?

Richard, Thanks for the correction on the PPM part, I forgot to add PER LITER title... :mrgreen: and gracias for the CT correction.... :goodjob:

Hi Ke, Your model is a 1 gram unit PER HOUR, with your pool size at 8500 gallons and depending on your water flow, you may get decent concentration. I mean decent is that I hope you may get the result I am getting. My pump is slow at 12 hours turnover, so I get more concentration than a...

Ke, I do not have SWG. I think Mr9 is trying to say that if you have SWG, after/downstream the cell you you will get very high chlorine level, and if you inject ozone there, your chlorine maybe be oxidized or reduced because where ozone venturi injector is at, downstream of that, the ozone is...

Hello John, In my country the city water is "slow", it will take a week or more if I fill my pool up with it and I may not get water for my home...... :hammer: Dang this is the norm for a poor country. So I have to buy city water or sometime they claimed is spring water using 2K gallons...

Thanks Jason. I am was looking into this because my head loss from pipes length alone was supposedly to be approx 15 feet acording to on line calculator but looking at my filter pressure, I am getting lower PSI than expected. So I was thinking , where did I go wrong ? I know accurate...

Thunder, I use 1 of Hayward 120 SF cartridge and that is already downstream of a Hayward sand. So my cartridge work less. I do at least 1.3 turnover times 35,000 gallon of my pool a day. My city is polluted and I have divers in the pool about 10 -15 people a week. 1 diver is like 3-4 swimmers...

Now I am confused.....TDH, Hydraulic 101 Hello Jason, GazzMan question got me thinking. I know this sounds paranoid, but may I ask if I am reading my filter pressure wrong in respect to TDH discharge side ? A filter located above a pump by 8.25 feet , as long as the water flows back to the...

The thing I hate about Indonesia is that, there is no regulatory body when it come to pool professional or pool supply stores. I mean to say is that, I have not yet find a pool profesional ( maybe I did not try hard enough I guess ) that can understand pool chemistry the way I expect them to...

Hello All, As I said in my introduction, I did really not get involved at all during the design of the pool because I never knew anything about pool. All I did was : 1. Specify the depth and how big shallow end and deep end. 2. I do not want any drain that exist on the bottom of the pool...

Hi All, I just introduced myself a few hours ago in the Introduction section. Very friendly crowd here. http://www.troublefreepool.com/viewtopic.php?t=4477 I want to say that this is a great forum. I would like to share and learn...in this case I surely will learn a lot. I want to improve the...