water change every 30 days ,
blenching powder used for chlorination .
water filter through sand and carbon(Ordinary) tank.
Swimming pool size is 30 x 70 x 15 feet.
We can not see floor after 10 to 15 days but if we take water in glass it look clean.
guide us how to keep pool water clean for longer time.Swimming pool water get dark in 15 days what to do ?The secret to keeping a pool clear? It's really no secret at all, it just involves filtration, cleaning, correct sanitizer levels for the conditions and proper water balance.This is something you need to take care of on at least a weekly basis, not just once every two weeks. If you lack one of those, then you have problems. You have one or more of those issues.
Just looking at a sample in a glass means nothing. Lake water looks pretty clear in a glass too, until you see a larger sample of it. Same with some municipal water supplies. You'd be amazed at what you drink from the tap that when put in a pool would make you think twice. It's all in the volume.
There should be no need to drain that pool at all other than once every eight years on average and even then, you can usually get away with a partial drain to bring the total dissolved solids count down.
Take a water sample in to your local pool shop for a free check. They'll be able to point out your issues. One thing for certain is that unless you've added stabilizer every time you filled that pool, it will be non existent and it's pretty important to have some in there. It helps the chlorine work.
Once you get your water balanced and are on a proper chemistry profile for your pool and you're still having issues, I'd get a tech in to look at your filtration system. There's either an issue with it or it's possible you are actually doing something wrong. I've seen people running their pool on the recirculate position, thinking that's how it's supposed to be. They wondered why their pool kept going cloudy. :) If you ask the tech, he'll likely be more than happy to show you how to run your system to get the most out of it and to keep your running costs down while at the same time, never having a water issue. It varies from pool to pool, so I can't give you much more info with so little that you've presented, to go on.Swimming pool water get dark in 15 days what to do ?a small sample of water will not tell you how dirty it is because it is too spread out in the pool. it is probably just minerals and algea mixed in with the water. you should just keep the chemicals right and let the pump filter the water.
