thank u freind for this video.ihave rain water drainage for flat roof is bloked with solid gravel at 90 degree junction down with horizontal second pipe . I though about using phosphorus acid . I kept on search at u TUBE till I get u 'r vidue . So I thought 2 day is cup the blocked pipe , but by u r video I have to wait for week . Thanks again friend A. Baghdad
Bro which chemical to disalve the cement with fast react the cement
thank u freind for this video.ihave rain water drainage for flat roof is bloked with solid gravel at 90 degree junction down with horizontal second pipe . I though about using phosphorus acid . I kept on search at u TUBE till I get u 'r vidue . So I thought 2 day is cup the blocked pipe , but by u r video I have to wait for week .
Thanks again friend
A. Baghdad
hey is this ok in clay sewer drains?
Diy cement drain cleaner