What I really had in mind was a means for Roderick to water-proof plaster his swimming pool, but this is where we ended up: ___________________________________________ Centre for ecological sciences, Bangalore, India. http://ces.iisc.ernet.in/ Everything you ever wanted to know about making watertanks - ferro-cement and many other types. These are links to only some of their pages. . Waterproof concrete plastering http://ces.iisc.ernet.in/energy/water/paper/drinkingwater/rainwater/testnmix .html Construction of ferro-cement reservoirs without mould http://ces.iisc.ernet.in/energy/water/paper/drinkingwater/rainwater/ferrocem ent.html Construction of ferro-cement reservoirs with a factory made mould http://ces.iisc.ernet.in/energy/water/paper/drinkingwater/rainwater/factory- made.html Construction of ferro-cement reservoirs with a made on site mould http://ces.iisc.ernet.in/energy/water/paper/drinkingwater/rainwater/made-on- site.html Repair of ferro-cement reservoirs http://ces.iisc.ernet.in/energy/water/paper/drinkingwater/rainwater/repair.h tml -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads