Dahlia plants
need a lot of water but most blooms will mark if exposed to rainPorous pipe,
this has been a great benefit to dahlia growers. It is manufactured
in England from reconstituted car tyres. Working pressure is 7.5
psi. it does not work at high pressure. At 7.5 psi water seeps
from the pipe into the soil. Maximum length in one run is 50 metres
but if water is supplied from both ends the maximum length becomes
100 metres. Water penetrates the soil 30 - 45 cm either side of
the pipe depending on the type of soil. The pipe can be layed
on the surface between rows of dahlia plants or buried.
Porous
Pipe laid between the dahlia rows and all ready for connecting
to the water supply. Water is supplied from an outbuilding which
houses the filters, pressure regulators and dilutors
Porous Pipe in
action watering my dahlia plants
Since
Porous Pipe cannot be coupled directly on to the mains water supply
it has to be fitted with pressure regulators which keep the pressure
constant at 7.5 psi (1 in photo). There is a danger that the inside
of the pipe could become clogged and with this in mind 150 micron
filters are included inline with the pressure regulators (2 in
photo). I also use inline dilutors to supply chemical feeds to
the dahlia plants (3 in photo).Pressure
regulators Filters and Dilutors