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Thanks, the cells have always worked (it's on its 3rd cell), afaik it creates chlorine gas properly, I just thought the chlorinator had developed a fault in the conductivity salt check circuit, the chlorinator is around 8yo and has a few LCD gremlins now as well. It must have been something...

What is the actual salinity? A: 4400ppm What test kit are you using? A: Salt Detection Test Kit – Clear Choice Labs You should never rely on a single salinity test. A: I haven't, at least 3 tests in the last 6 months as we have had a ton of rain. I always want at least two independent salt...

Hi, I've had a permanent "Check Salt" error on my Tri pH SWG for months (salt level was fine, checked using salt drop test), I recently checked my CYA level, it was real low, I added 2kg of dry stabiliser and for the first time in ages I was able to clear the "Check Salt" error, why? Thanks...

Hi, Apologies if this has been asked before, I just got a 500 micron solar pool cover installed after a decade of making do without a cover. So in the last decade, with a lot of help from TFP, I've mostly kept the water quality correct. It's off-season here and so the pool cover will be on...

Alright, so the pH is measured by the chlorinator pH probe, it was 8.2, I think thats the max level it can measure. Guilty as charged, I'm certainly lax at maintaining the pool over winter, we don't have a pool heater so we don't swim in it then. I did my spring "cleanup" on the pool and it...

Hi All, I have a TRi pH unit, I like it. Anyway after 8 years, in the winter, the peristaltic pump gave up the ghost, it was a while before I noticed, probably quite a few months, the pool had started to go green. So I go to fix thing up and I remove the 20L acid (32% strength) bottle, its...

Hi, How do people dispose of the gallons of diluted TSP and acid used in cleaning cartridge filters? Can you add something to negate TSP's high alkalinity? I read about adding baking soda to the acid bath? Thanks. Richard

Hi, Sorry if this has been asked before (or it's a stupid question). I'm starting to worry that granulated chorine probably shouldn't be used in a pool with a cartridge filter because of needing acid to get rid of calcium carbonate (residue from calcium hypochlorite), I'm assuming calcium...

Thanks, I will do an OCLT and SLAM when I figure out whats wrong with this filter. Compared to the 3mo filter, the 6mo pleats look a lot more rigid and are clumping together in groups of up to 5 pleats, maybe this is calcium carbonate as I have used kilos of calcium hypochlorite (it's what I...

Thanks, while I soak the carts I'm running the controller on boost, that goes at 100% chlorine for 24 hours. My Tri Ph Large should produce 35 gram per hour (the cell is brand new) and the acid pump should keep the Ph in check. I will go from there, I'm expecting clear water and a mess on the...

Thanks, no cart installed reading is 10 basically the same as a brand new cart installed. I bought some TSP, I'm putting both carts in a 50 gallon drum, that's 10 cups of TSP, how long should I leave the carts in for?

Thanks all, for my sanity I'm going to SLAM with the filter removed and vacuum the dead algae to waste. Gauge reads 0 when the pump is off. No algaecide or flocculent used. No acid used on the carts. My guess is the flow will be just great with no filter installed.

Thanks, I have been battling with algae as its just coming in to summer here and I had equipment issues (chlorinator failed but looked fine). The problem with that is, I can't really battle any algae if I can't get any flow through the pump, and literally from the minute the hosed off filter is...

Thanks, clean filter pressure was 10 and now after a spray down I'm getting 19 which is basically really close to the red, the flow is crappy (my chlorinator runs at only half full with the pressure at 20)? I'm just spraying it with water from a hose in flat mode but in the past I have soaked...

Hi, I have a 150 sqft Cartridge Filter right now with 2 cartridges, one is 6 months old and the other is 3 months. Now I changed from sand to cartridge 6 months ago (the pool was sand for at least a decade), not sure if that's relevant (is there some micron sized thing that sand lets through...

I should explain, I currently have a very tall filter, the current pool equipment is located in an area with significant height restrictions, this is a problem. I would like a cluster of much shorter filters. I could move the pool equipment somewhere else but I think this might be a better idea.

Thanks all, I'm just exploring options, the low maintenance of a sand filter without the backwash filter loss would potentially be ideal. I don't have the pool covered, it's a really old fashioned shape of pool and would need a custom cover, the price versus the life expectancy of it freaked me...

Hi, I don't want to pay A$3K for a Zodiac CV460, can I just plumb multiple cartridges in parallel? Split the pump outlet to 2-4 pipes put each of the pipes into a set of identical filters inlets and do the reverse on the filter outlets, I could even have valves on the filter inlets to allow me...

Thanks, you mean put the backwash into a rain water tank, or are you saying to just put rain water into the pool, I already have a rain water tank, it's been empty for over a month?

Hi, In 3 days Sydney moves to level 2 water restrictions. Has anyone built a system to save backwash water, basically a holding tank and some sort of method to get the water into a state so that a large percentage of it can be slowly put back into the pool? Maybe the holding tank has a...

Thanks everyone, going to process all of this.

Update: on reading what I have posted here I'm thinking that there is still some living algae. Hi All, Please help you lovely people. My SWG electrode connector corroded away and I only noticed when the pool unexpectedly went green, it was winter and we weren't using it, that's fixed. The...

Hi, I have a new 150 square foot cartridge filter, this thing is like 3ft tall, I ran it until the water pressure was close to the red and took it out and hosed it off for 30 mins, top to bottom, trying to get the water jet into every crease, that dropped the pressure a bit but nowhere near the...

Thanks jblizzle, Do we know if a cartridge filter will work properly if mounted horizontally, there is lots of space horizontally?

Hi All, Thanks for all the help in the past. My (5 year old) sand filter has a hairline crack around the neck (long story), I have taken the filter out and I'm replacing it (for a number of reasons which I don't want to go in to) with a cartridge filter, which I have already. The two issues I...

Thanks all.

Thanks Jim & pabeader, I like the look of this thing: Intex 0.50hp SAND FILTER & PUMP Combo (for Above Ground Pool) Strapped to a dolly, thoughts?

Hi, Thanks for looking. We have a really old pool, the pump is pretty weak and I don't have any secondary connectors in the pool for creepy crawlers and such like. The floor of the pool is getting a lot of dust and the vacuum hose you put over the skimmer is complete rubbish. Actually from...

Thanks needsajet! Not confirmed, if the flow is left-to-right, my injection point is to the left of the sensor!!! I can't see that stated in the manual but it seems obvious to me now. I will change it round and lt you know what happens. UPDATE: turned the sensor pod 180 degrees and it all...

Thanks needsajet. Yes, the filter pump is powered through the TRi, so when the the TRi is active (4 hours per day) so is the filter pump.