I just purchased a home with a pool that has about 25-30ft worth of cracks. Different contractors have given bids ranging from 5K to 8K. The 8K contractor uses torque lock staples and with foam injection of the cracks. The others use epoxy/hydraulic concrete with rebar staples. One of the contractors that uses rebar is giving me a 1 year warranty on that crack not returning, but the others including the one that uses the Torque Lock will not give any warranty. What is the general advice on torque lock staples vs. rebar staples? Should I spend the extra 3K on the Torque Lock staples and foam injection over the rebar staples and epoxy/concrete?
thanks