I just did this! The trencher is a real back saver. I did not put mine below
the frost line. I will just blow it out with an air compressor in the
winter. I used it to add an automatic water top off system to my skimmer. I
had to add a pressure regulator to my line because the 90 psi line pressure
was blowing the fittings off of my top off system. I regulated it down to 25
psi. You can find them in the water heater or irrigation (drip pressure
regulator) areas of Home Depot/Lowes type stores. I trenched mine only 8
inches underground, but as I said, I will blow it out in the fall with an
air compressor. I used 3/4" schedule 40 pipe.

For the electric, there are codes on the depth of the wire - if contained in
conduit you can bury it 6" underground. If using just UF(underground cable)
I think it must be at least 24" deep and you should cover with a redwood
board as well. Check for your area. Also, conduit and a junction box must be
used to transition from inside to underground. Someone recommended getting a
roll of yellow tape that says something "underground wiring buried here" a
put it above your wiring in the ground. Make sure to use the correct
exterior junction boxes and gang outlet boxes. The new ones have a large
plastic cover that flips over the front. I have a four gang at my skimmer
for the pump and UV lights. Leave enough for low voltage lights and other
expansions as well. Note: underwater lights from Malibu must be wired
directly to the power pack.

Good luck.

TG
"Benign Vanilla" wrote in message
...
The SO approved me renting a trencher so I can run power and water out to
the pond. When I mentioned I could T off and put a spigot in the garden,
she
instantly approved the rental.

Before I do this...Any thoughts? gotchas? wish-I-had-done-this's?

BV.