This Newbies Learning Thread

[Jezza]

After dropping another 700g of buffer in this morning the CYA was right up there this afternoon.

FC: 10
CC: 0
PH: 7.2
CYA: 80

80 seems to be the recommended level for a SWG so hopefully it doesn't continue to rise overnight.

I also tried a salt test with the kit for the first time (the readings so far were from pool shop). The result I got was 6000ppm - surely that's not the case and I've somehow made a mistake!?

Noob Query: When doing a titration test it says to mix after adding each drop. If you know the approximate range of your water is it OK to add the bulk of the agent, then mix, then go drop (and mix), drop (and mix) as your approaching the likely result?

For example: if I know my FC level is approx 10, can I add 14 drops of the reagent (then mix), 1 drop (then mix) and so on until I achieve the reaction?

I don't think it matters too much as long as you move through the titration relatively quickly.

I think the CCL salt test is fairly accurate as they have just refined it to be like the Taylor K-1766 version. At the end of the day if your SWG is happy (ie-no warning lights) I wouldn't worry too much about it.

 

[pooldv]

Agreed on all points.

 

[happipoolguy]

Cheers.

I tested CYA again this morning with some more favourable lighting conditions. Results came in at 60 which makes me feel a little more comfortable.

 

[happipoolguy]

Looks like I might need to fire up the SWG tomorrow.

Results from poollogger.com

FC: 7.5
CC: 0
PH: 7.2
TA: 150
CH: 275
CYA: 60
Temp: 14
Salt: 4340

 

[Jezza]

Nice work and the figures are looking good. Yep fire up the SWG. I'd start it up at about 75% and see how your FC looks from there after a day or so then you can fine tune it from there.
Remember the best say to get an accurate reading on the CYA test is to take it in full sunlight with your back to the sun at waist height. Preferably same time of day for consistency.

 

[happipoolguy]

I'd start it up at about 75%.

Ok cool. Thanks for that, I had no idea where to start it at and was leaning towards 25%. 75% makes more sense now that you mention it. Better to err on the side of too much FC.

Remember the best say to get an accurate reading on the CYA test is to take it in full sunlight with your back to the sun at waist height. Preferably same time of day for consistency.

Thanks. The 80 reading was late afternoon, very dissipated light. The 60 reading was mid morning bright light at my back.

Certainly feeling good about things at the
moment. I'm away for work for 10 days from Tuesday so will need to give the missus a crash course in Chlorine and PH testing [emoji4]