David Hare-Scott wrote:

It has been dry lately so I have been irrigating the orchard. I moved the
sprayers this morning and then started the pump. One of the four heads
wasn't working at all. These are the type with two nipples, one has a
tapper, a spring loaded arm that rotates the whole assembly using the
pressure of the water. Normally they will give out some dribble of water
from either of the two jets even if blocked with organic matter sucked
through the pump from the river. On closer inspection something slimy was
being squeezed out of each jet. I pulled at it but did no good as I
couldn't get hold of it. So back to get some tools and take the head apart.
As I lifted it off the stand what should be hanging down out the inlet
side - legs. Green legs with webbed feet.

Imagine you are a frog and have curled up inside a bit of pipe for a kip.
Then a gush of high pressure water hits you and you are travelling at speed
down the main pipe, waterslide! Then you take a branch into a much narrower
pipe and round a few bends, upside down, wow water rollercoaster! Then you
reach the sprinkler head where some of you goes out one jet and some goes
out the other....

how sad for the froggie.

i hope you'll put a screen around the end soon.

also, it may be worth the time to set up a small
wetland/sandbox/pondlet to filter the water before
you suck it up as then you'll keep stuff out of the
lines/heads.


songbird