Those termites will find any way into the house, sometimes it just works out that it is a pipe. Originally a pretreat was done and this should work for many years, if the pretreat was done correctly. So as you are doing your monthly inspection, it would be wise to check any pipe penetrations through your foundation slab. I actually found one swarmer (reproductive) or alate termite walking around inside the shower.
It’s monsoon season here in Arizona so termites are usually a little more active, so please check your home or give us a call at 602-249-7378 or 623-414-0176.