Sprout watering is done mainly using an automated "micro
The plumbing is done using Hozelock micro-
irrigation supply tubing and fittings.
However I found the Hozelock misting nozzles to be
The best misting nozzles I've found are those supplied by
Norman Garden Products. These are relatively
expensive - but they do the job.
Fortunately I found their screw fitting is about the same
size as the Hozelock misters - so they can be
simply screwed into the (cheap and convenient)
Hozelock supply tubing.
More details of what misting and micro-irrigation systems
are available can be found on this site's
Micro irrigation system
In this photograph, it can be seen that water is being
supplied by misters - from above - using two misting jets
per seed tray - and that each shelf has its own flow-control
Water drips down from holes in the bottom of each
gravel tray onto the trays below it.
When the water reaches the bottom shelf, it goes into a
slanted drip tray.
The drip trays channels the moisture into the waste water bucket.
The exits from the drip trays can be seen here:
Drip tray waste taps
The drip trays are made out of wood - and are lined with
thick PVC. I would have used plastic trays - but I
couldn't find any the right size.
Unfortunately, my sprout farm is not currently anywhere near
a water source - or a drain.
Consequently I pump water between two water containers -
The one of the left is the waste water container. The two
hoses going into is are the ones from the drip trays (above).
The one on the right is the fresh water container - containing the pump.
I use this 250 Watt sumbersible pump to drive water through the system:
The pump is attached to a programmable mains timer - which turns the water on
at regular intervals throughout the day.
I also do some manual watering.
I do that using this 7-litre garden pressure spray:
Garden pressure spray
Gravel tray lined with capillary matting
While watering, some of the supplied water drains into the
enclosing gravel tray.
This is lined with capillary matting - which is intended to
retain excess moisture - and to help redistribute any excess
Go back to Tim's sprout farm.
Tim Tyler |