Capillary fittings are
• cheap to buy
• unobtrusive when fitted
• useful in confined spaces
• very quick to install – and to unmake during alterations, BUT
• using them requires a blow-torch to melt the solder
• if the joint leaks you have to completely remake it.
SAFETY TIPS
When using a blow-torch always
• wear thick heat-resistant gloves
• put down a lighted blow-torch on a firm flat surface with the flame pointing into space
• clear any flammable material from the area where you are working
Compression fittings are
• easy to assemble – you’ll only need two wrenches or adjustable spanners – BUT
• they’re much more expensive than capillary fittings
• they are much bulkier and obtrusive on exposed pipe runs
• in awkward places you may not be able to get wrenches in to tighten up the joint. Leaks can sometimes be cured by further tightening.