Cost of new catchment system

[MarkP]

Granted I haven't built anything myself yet nor do I rely on a catchment system for my daily water but I do know people who do. I think that getting a 20,000 gal tank instead of a 10,000 gal tank is a good idea. I suppose it is overkill 364 days out of the year but when you need it you won't regret it. It is not only the cost of the water but also the peace of mind and security to be considered.