i used to use the gravity feed system with a (big)preservation firm i used to work for,personally i didnt think it ever worked,but ive used a lot of methods over the years i personally thought the best method was using a spirit based dpc fluid at high pressure,and watching the moisture being forced out and a dark line of bricks being left behind,
we used to have a large number of skeptics on a few refurbs ive worked on sounding off about it not working,i just used to get a brick drill a hole and inject it in front of them,they soon changed there minds when they could actually see the fluid spreeding through the brick,
ive just recently done a part refurb on a flat where i work and that had a dpc installed years ago(yep it didnt work)because they didnt do it properly just drilled through the bricks into the cavity and yep youve guessed it the cavities were well and truley full up,i could never understand why some firms insist on injecting BOTH sides of a cavity without even checking if it was full,when the best way is clearing the crud and injecting the inside skin.
there will always be discussions about this line of work,with a lot of peeps saying that rising damp does not exist but if thats so!why do we install dpm/dpc whenever a floor or wall is installed?
we used to have a large number of skeptics on a few refurbs ive worked on sounding off about it not working,i just used to get a brick drill a hole and inject it in front of them,they soon changed there minds when they could actually see the fluid spreeding through the brick,
ive just recently done a part refurb on a flat where i work and that had a dpc installed years ago(yep it didnt work)because they didnt do it properly just drilled through the bricks into the cavity and yep youve guessed it the cavities were well and truley full up,i could never understand why some firms insist on injecting BOTH sides of a cavity without even checking if it was full,when the best way is clearing the crud and injecting the inside skin.
there will always be discussions about this line of work,with a lot of peeps saying that rising damp does not exist but if thats so!why do we install dpm/dpc whenever a floor or wall is installed?