I suggest you look at Gwen Spicer's great article in the November 2010 AIC News - “Defying Gravity With Magnetism” AIC News 35(6).
Type: Posts; User: Patty Silence
I suggest you look at Gwen Spicer's great article in the November 2010 AIC News - “Defying Gravity With Magnetism” AIC News 35(6).
Based on experience with wet-pipe, dry-pipe and pre-action dry-pipe, I strongly caution against the latter two. Briefly, the theory bhind them is that the pipes are kept dy inside. This is achieved...