Solar Pumps and Solar Lights for Ponds
As the president of a company that sells a lot of fountain pumps,
and who also receives a lot of OEM inquiries, I've been around
the block on solar pumps. They seem like such a great idea. No
wiring needed! No electric bill! I tried to sell solar pumps to
major fountain manufacturers but never got a sample to one of
them that could pass muster.
Many customers believe that we are just too lazy to try solar,
or we don't want to cut into a 110-volt market that is already
doing well. But the truth of the matter is that solar still runs
into quite a few problems, not the least of which has been, in
my experience, not enough sunlight!
You see, most of the solar pumps out there are powered by solar
panels (many of them quite good quality, by the way) that require
direct sunlight in order to work. That means that they go on and
off all day long, depending on whether a cloud is passing, where
the sun is in reference to the panel, and so forth. Some do have
batteries in them, for sure, but these units are expensive and
also do not pump very much water at very high of head. The truth
of the matter is that solar is a lot better idea conceptually
than it is in the world when tested. Think of it this way. Those
little solar lights in the yard that are collecting sunlight all
day burn only 8-10 hours at night. They typically have enough
power to light two tiny LED bulbs. Worse yet, when it comes to
pumps, the DC pumps used for solar fountains don't last the kind
of hours that a normal magnetic rotor pump lasts.
This is too bad. We have really wanted solar to work, but it
has so far not panned out, not well anyway. We really caught on
to this when we noticed that some companies were taking credit
cards for everything but their solar pumps. This means to us that
they do not want to have to be faced with charge backs and returns.
Customers are too often disappointed in the product and demand
their money back including shipping both ways. It gets to be too
much.
So here is what we have come to suggest to customers: think modestly.
If you really want a solar pump, perhaps think of it as a novelty
item as much as anything. And also make sure you have somewhere
to hide the solar panel. In other words, do not plan to install
a solar fountain in your front yard. The solar panels have to
be put in direct sun and are easy targets for thieves. They are
as easy to steal as a flower or leaf on the lawn. So plan someplace
in the backyard in full sun and don't get bothered if the thing
goes off and on all day. Also, put a pump in a fountain that requires
low head (height of pumping)
and
not much volume (from 30-80 gallons per hour maximum usually).
Or better yet, just use solar lights. They work and they are cute.
Floating solar pond lights are also available these days. These
can be "thrown" on top of a pond or pool and work the
same as in-the-lawn solar fixtures. The only difference, and this
is a major one, they float! They are usually available in different
colors for seasonal effects (red, white, and blue for July 4,
for example).

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