Most drain cleaners are an alkaline, meaning that they have a very high ph so, if you look at ph levels, acids are very low they can cause horrible damage you get that drain cleaner in your esophagus, in the food tube that leads down to your stomach, and that's just going to chew right through that. Plumbers, gasfitters and drainlayers need to be. Boilers often come with an ‘eco-mode’ function on top of the normal setting. A plumber.
Added: 2018-06-21 | Category: boiler service