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I'm on my second algal bloom this year due to my crazily expensive Palintest kits running out of reagents. They don't sell refills, you have to buy the whole kits again at around 142$. I had to ask for a pro-forma invoice which was then (after 2 weeks and a reminder email from myself) emailed to...

Hi again everyone. I recently did the 1st test of the season and i realised that my TA has dropped to 0-20. I'm guessing this is because each time my solar heating switches on it injects a load of air into the pool causing aeriation and loss of carbonates. Anyway, I've started a no-drain acid...

The start of the conversation was split off of this topic. JasonLion Does this mean my TA will rise ? It was 100 before I started. I'm thinking maybe I'll need to aerate.

Good evening/morning/afternoon. :mrgreen: I'm using some Cal Hypo bars (HTH) and Triclor pucks to raise my CYA and CH on a pool I've recently drained. I'm finding that the Cal Hypo bars seem to dissolve much slower and add much less FC than the Trichlor on a tablet for tablet basis. The Cal...

I'm almost finished building a home made solar collector. It is basically an oval lozenge shape on top of a poolside pergola. I've divided up the 2" feed into 20 x 5/8" irrigation pipes that spiral round 4 times before being "collected" together into a 2" pipe together. The spirals range in...

Split into a new topic. Please, only ask new questions in your own topics. JasonLion Sorry to bump this but I'm dealing with a glass tiled pool at the moment with similar stains. I'm meant to be cleaning and regrouting this pool for a client. The grout has completely gone. I've emptied it and...

I'm hoping that someone will be able to help me identify this multiport valve as I need to replace it. I inherited the samd filter with valve from a client and used it on my own pool. No one knows where it comes from and it's not at all familiar to anyone here. The writing on the valve is in...

I'm filling my pool up with rainwater after some work done to it. The pool at the moment is bare concrete and obviously needs extra calcium and stabiliser to stop calcium being leached from the shell and to protect the bleach I will be using later. As it is quite convenient I intend to use Cal...

Thought I'd post some photos of my part completed concrete pool build here in Portugal.

Here in Portugal you can't get laundry borax no way, no how. However I am able to get from a chemical supplier the following products. Sodium Borate (granulated for agriculture) (# BORATO DE SÓDIO (Granulado Agricultura)) Anhydrous(?) Sodium Borate (# BORATO DE SÓDIO ANIDRO) Granulated...

I'm working on a pool in an area known for it's high iron content in the well water. The pool is filled with this well water and there is no option for another source. I have been dealing with this quite successfully by shocking, flocculanting and vacumming to waste. My question is this; why is...

I'm going to be draining my pool this winter to tile it. I was thinking of refilling with rainwater but I would have a problem with lack of hardness causing corrosion, especially as it is a concrete pool. My well doesn't produce enough to fill my pool nicely, it takes 3 weeks and drags lots of...

I'm just wondering what anyones thoughts were on UV for chloromine reduction. I was originally going to fit UV and a chlorine tab feeder until I found this site and realised my CYA would hit maximum too quickly. So I am now thinking of using SWG and am thinking that maybe the UV won't be needed...

Hi, I'm new to this wonderful forum and have many questions, a few answers and am very impressed by the quality of information here. So my first question would be, I have a cheap OTO Chlorine test which I was led to believe actually shows total chlorine including chloromines. I have also...