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hi all. this a continuation of the situation so keeping it in the same thread.. the short story is that I had to go away for 3 weeks immediately after filling the pool and I had someone take care of the chlorine levels while I was away. I kept a table of the readings they took which were...

thanks again Texas Splash. I know you are right and that accurate testing is the way to go about it, I really do appreciate that I need the FAS/DPD test . . . I have ordered online but I still waiting on shipping and customs clearance which will likely take several more weeks . . As mentioned...

just repeated the OTO test: 50% diluted water + 1 drop OTO and it went straight to a yellow colour which is almost the same as the 3ppm reference colour - so presume this mean total chlorine of <> 24ppm. Couldn't discern any changes from pale to darker yellow this time. maybe no FC? The water...

A possibility which has just occurred is that the sediment is from the new water - the main borehole pumps into an IG plastic storage tank, controlled by a float switch. When the storage tank gets low the water in the house can get a little brown / cloudy so I guess there is sediment in the...

Last night (Just to clarify I am UTC+7) I added 1.2 kg of soda ash as the pool was filling and 1kg of TCCA. The TCCA is in a tub which says "90% TCCA - Trichloroisocyanuric Powder". It doesn't mention any other chemicals and it is not marketed as a "Shock" treatment so I guess it is probably...

OK now I see the bit at the bottom of the PoolMath calculator . . basically even if I add all the Trichlor I have (about 2.5kg) the CYA level will only get to about 20ppm which is lower than recommended level for a SWG pool. So I will need more CYA for sure. I will aim for starting FC of 10ppm...

Thanks for the reply Texas Splash. I have about 3kg of 90% TCCA in powder form, will this dissolve quickly enough for the shock CYA / Chlorine? If so do you know how much CYA is added per KG of TCCA?

Hi all, I have now drained and cleaned the pool, it is currently refilling direct from the borehole. I have read several helpful posts on the forum and it seems like I probably ought to SLAM the pool first as there is almost certainly residual algae to get rid of. Also I should probably do this...

OK so the landlord came round today and apparently the last time the pool went green it was very expensive for him to replace the grouting on all the tiling. Something to do with it getting too acidic? Anyway he has made the decision that better change the water now than wait for the test kit to...

Hi thanks for the reply pinguy. Emptying seems drastic but could be an option - we are on a borehole so refilling is not so much of a problem. The only issue i see is that I think we have a waste tank under the garden somewhere but obviously it will not hold the full pool volume so I don't know...

Hi I have just taken over a pool which has been off because of a problem with the SWG controller. This is (hopefully) now fixed (replaced burned out connector) so I would like to get the pool usable again. We are expecting guests in a week so my wife is on my case. Prior to the SWG problem...