fishcrazy said:
We measured the CYA at 40.
How are you measuring the CYA - is this with Taylor kit or TFP kit?
What is your source of Chlorine?
fishcrazy said:
I have not tested the chlorine today as I am sick and not feeling up to it.
Very sorry to hear that. I hope you feel better soon.
fishcrazy said:
There is no change in the looks of the pool as of yet though. My shock level should be less than what I have it at now(FC=25). Dont know how I got it that high but I guess the wife was off on some calculation.
How did she calculate this? Was she using Poolcalculator.com? If so maybe the volume estimate or the Percentage strength of the chlorine source was inaccurate.
fishcrazy said:
I suppose more chlorine than nessary is OK but it does not deem to be going down any at all.
25 is quite a bit high. The max typically recommended is around 24ppm which is the Mustard Algae level. More typically the site recommends around 16ppm as you saw in the CYA/Chlorine chart in Pool School. How are you measuring the chlorine? Are you seeing any CC's?
fishcrazy said:
It is a sand filter which I know is not the best but it is what I have. The sand filter seems to only get a bit cloged up at the end of a 24 hour period and requires a backwash.
Sand is fine. How high is the starting pressure vs. the pressure you end up with just before backwashing? And what does it go down to? How is the flow from the returns?
fishcrazy said:
Doesnt seem too effective in filtering these suspended particles out. I think it is passing many straight through. The sand is only 2 1/2 seasons old. Could it need replaced already?
First - my impression from this site is that filtering is how you clear up suspended particles but it does little to help while the algae is still growing. What seems to be the case is that you filter because as the algae dies off the filtering will start helping to remove the particles and the algae won't be replicating and replacing them. Sand is actually easier to use because it is slow and doesn't get clogged quickly. Filter sand also doesn't seem to wear out. Sand filters do however sometimes need cleaning beyond the backwashing process. Read
this topic for more details on how to clean your sand filter and get it running in top shape.
fishcrazy said:
I cant see the bottom to vac it. Would it be smart to stop the filter an let the suspended particles settle and then vacuum them to waste?
Unless you suspect sharp objects that you worry could damage the liner as you vacuum I think it's fine. Do make sure you are using the skimmer basket or inline leaf cannister to catch things before they could clog your suction lines.