Changes

Traditional hand-dug wells

74 bytes added, 22:41, 11 April 2012

→‎Avoid contamination

{{procontable | pro=

- Manual access, that can be deepened or maintained easily at a later date

Circumstances which make the construction of large diameter wells necessary:

# Inability to obtain or maintain pumps or special buckets necessary for small diameter wells

# Water raising system requiring lifting device requires more space (than is available) in a small diameter well), e.g. continuous chain and buckets

# Desire to improve or repair existing large diameter wells

# Where the aquifer (water storage) is of extremely low permeability

• ← Older edit
• Newer edit →

Winona

Akvopedia-spade, akvouser, bureaucrat, emailconfirmed, staff, susana-working-group-1, susana-working-group-10, susana-working-group-11, susana-working-group-12, susana-working-group-2, susana-working-group-3, susana-working-group-4, susana-working-group-5, susana-working-group-6, susana-working-group-7, susana-working-group-8, susana-working-group-9, susana-working-group-susana-member, administrator, widget editor

30,949

edits