Now that you've gotten rid of that nasty clog, you'll want to keep your drain nice and clean, so it's not a repeat offender. I'll have to think that one over for awhile a very informative blog, as usual, and voted up! Is it time to replace your gas boiler? call. By law, only gas safe registered engineers can work on gas appliances always ask to see a tradesperson's credentials before letting them enter your home. Even if you are handy, doing your own plumbing repair or installation.