The first thing in water chemistry is to get the chemicals right.
So for raising pH use sodium carbonate (soda ash). For chlorine use calcium...

Hi there!

first of all, I just want to ask what model of Dolphin pool cleaner are you using? Dolphins had a lot of good robotic pool cleaner however...

I need also to say that if your dehumidifiers are in good working order, and from your observations, they seem to be, ventilation to the outside air...

Try reading through this there is a stack of info there
The dirt may be to fine to pick up the dirt, try a flocculant

I have no knowledge of your type of pool and filtration but I suspect that your filter is damaged.
Replacements must be available. Look for any...

It is now 8 days since you first posted here
Have you solved the problem, if not post your levels back here including Combined Chlorine

Since your post in 2012, have you been able to determine your reason for water loss?
Do you like your knife edge pool?
We are having a knife edge...

Check the spider gasket in the multi port valve it might appear OK but appearance is deceptive, they are cheap to replace

I loved the pool. It looks great. Especially the raised edge.

Lucky, I found this post. I'm installing a pool pretty soon too.

If the plaster is already worn, dehydration can cause further damage more quickly.

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Hello flups,
First of all you cleanup your pool removing all pool water by using motor pump. After that you you should clean empty pool by chemicals...