Use one part caustic soda for
Use one part caustic soda for every four parts of water. If that doesn’t do the trick, try option two…. Find simple solutions to your gardening questions. Bi-functional electric central heating flow boiler power: 4-24 kw. Some new boilers are made with flue gas heat recovery already incorporated, so there is no need to buy a separate heat recovery device. Didn't unblock sink at all,if anything is was more blocked after 2 applications,.