I recently purchased a old house to flip. The house is stick frame with shingle siding. Somewhere down the line they decided to run a chain wall around exterior and put a brick veneer over original house, without removing the shingles. The underside of house is low to ground and is pretty inaccessible. I'm repairing floors and leveling house and while I have somewhat easier access I want to trench and run sprinkler hose around the perimeter of underside of house of future termite treatments. What would hold up to the exposure to the chemicals in the termite treatment. Cost efficiently. Any suggestions?