We have a 9 year old pool (10000 gallon blue marcite) that has two rebar stains. My question is is there any way to fix the problem other than draining the pool and having someone cut out the marcite and replaster it? If there is a product that I can use to do this I would prefer to becuase of the cost...

Hi. I have a Polaris 360 that is now about 6 years old. It seems to get stuck when it gets the slightest resistance. It will travel the bottom of the pool but as soon as it gets to where the gunite starts to slope upwards it hangs there. I have felt the wheels myself and it does seem like the slightest resistance stops it. If I rotate the wheels with my hand (without it on) it doesn't seem smooth. Could the gears be stripped or something? I have checked all the other settings and the thrust jet, sweep hose, etc seem to be good. The pressure seems to be okay but I am not sure how to check it to be sure. I also wonder if anyone knows where I can find a tool that will make putting the filter drain plug on and off a lot easier (it is on the bottom of the filter and is removed during closing and put back on during opening). I ended up having to use a wrench which was not easy. The filter is a FNS-Plus Veritical Grid DE filter. I thought I heard one of the pool shop guys say that the manufacter makes a tool that makes this easier since it is such a tight fit to get into it. I tried calling the number for the manufacter on my Owner's Manual, but the recording was in Spanish only and I couldn't figure out how to get a person. Thanks! Beth