pool rehab (diy)

[sunofthebeach]

I'm rehabbing my pool.

A quarter of my grout between my flagstone coping is loose and can be picked out. The grout looks just like cement.
Can anyone tell me the exact product I should use to replace the bad grout (see pics)?

I have a couple of loose waterline tiles. What is the exact product to use to reattach these?

If I find loose coping pieces, what product is the "glue" that keeps the coping attached the the pool?

What is the white stuff that shows up on the tile at the water line? Why is it there and how do I get rid of it?

4 years ago before I opened the pool, I threw 4 chlorine pucks in the pool and they sat on the bottom. The pucks made a small area on the bottom of the pool rough and now that area is slightly discolored (brown). How do I fix this? I was thinking about sanding it smooth again.

pics to be attached

[Marin]

A quarter of my grout between my flagstone coping is loose and can be picked out. The grout looks just like cement.
Can anyone tell me the exact product I should use to replace the bad grout (see pics)?

Grey caulking is fine as long as it is rated for outdoor use. You'll usually get cracking here (deck moves, pool doesn't, this is where they meet). Something flexible is preferred over grout.

I have a couple of loose waterline tiles. What is the exact product to use to reattach these?

Thinset is fine, followed by grout. Remove the loose tile, clean the back of it and the face of the beam. Fill any hollow spots.

If I find loose coping pieces, what product is the "glue" that keeps the coping attached the the pool?

To do it right, you need to remove the coping stone, clean all mortar off, clean the area where it sets, and mortar it back in place. On the flip side, any brand construction adhesive rated for masonry will also do the trick. I've had to use this in a pinch.

What is the white stuff that shows up on the tile at the water line? Why is it there and how do I get rid of it?

One of many things, likely hard water stain or buildup. If you're draining the pool to work on it, CLR sometimes does the trick.

4 years ago before I opened the pool, I threw 4 chlorine pucks in the pool and they sat on the bottom. The pucks made a small area on the bottom of the pool rough and now that area is slightly discolored (brown). How do I fix this? I was thinking about sanding it smooth again.

You can sand the plaster smooth again, just depends on how much you have left down there before you hit gunite. Use 220 or 180 and go slow at first. I've used everything from a sanding block to a palm sander to a full on 7" grinder with a diamond wheel. It's all about finesse.
The brown stuff is likely algea that's set up in the nice porous areas you created. If you get that area smooth it probably won't bother you again.

[vinper]

I had a grout problem in the shower , this worked so well, i used it around the pool comes in colors like grout. But if used to thick takes a few days to cure http://www.homedepot.com/p/Polyblend...210S/100678059