We put in a new deck and took out some of the concrete pavers that used to surround parts of the pool. After jackhammering the pavers out, we discovered that the pool pipes sit about 10" below the top of coping (the smaller PVC pipes are sprinklers). Thankfully my construction helpers were very careful and did not damage the pipes. Is it okay for the pipes to be so shallow? We intend to put stepping stones down with black rocks over the areas where the pipes are exposed now. Thanks in advance for your help.