Posts in Backflow Testing & Certification

Jan 27 Some Important Benefits of Low-Flow Toilets and Dual Flush Toilets

Are Their Benefits of Low Flow Toilets & Dual Flush Toilets? At Mark Johnson Plumbing , we want to know, have you ever stopped to ...

Aug 07 Backflow Testing Could Save Your Family Member's Lives

There may be countless things that you do regularly to keep your family safe and healthy, but you may be overlooking one critical ...