Originally posted by MitchMan
David K, thanks for sharing your professional expertise with us. When I finish landscaping my place in La Paz I will use your system.
Right now I use a $25 or $35 USD battery powered valve (two AAs) that is screwed onto the spigot that is plumbed to the tinaco house supply water tank
on the roof. That way I get consistent and adequate water pressure. I set the valve (very easy intuitive dial for settings) to water my orange tree,
mango tree, and small new lime tree for 25 minutes every other day. The back yard is big, about 90 feet long, so I have two 50 ft hoses joined end to
end and connected to a three way splitter which has 1/2 inch hard plastic irrigation hoses connecting the splitter to each tree. At the end of the
irrigation hoses I glued a hard plastic cap and then drilled two holes in the cap to let the water out at the trees' locations. Works like a charm.
The only hard part was getting the water supply balanced between the three plants as the terrain elevations were slightly different and the lengths of
the irrigation hoses were different, all of which affected the relative water volume (pressure) coming out at the end caps at each tree.
I test the batteries every two months to make sure there is plenty of adequate battery life left. Have never had it fail (going on two years now) and
I changed the batteries after 6 months even though they didn't really need to be changed.
Somebody on this forum in another thread related to this matter cautioned
me that in her experience, these valves may or will eventually clog up and stop working due to the hard water characteristic of Baja water. She
cautioned that it happened to her and that luckily it froze the valve when the valve was in the "off" position, but, in her opinion, it could just as
easily have jammed in the "on" position. The documentation that came with the valve said that if the batteries die, the valve stays in the "OFF"
position by design. Although, that is not the same as the valve freezing due to hard water deposits.
Her caution makes sense to me. So, I test the flow and functioning of the valve by turning it off and on with the "manual" control and witness
whether or not the valve is responding quickly. So far so good. I have decided to keep using the valve as it has worked flawlessly for almost two
years... it's cheap... and so am I.
Side point: I go to La Paz about every other month, that may be different than McFez's visit frequency which should be considered.
[Edited on 8-27-2011 by MitchMan] |