Plumbing Connection 1-2015

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7 2 PLUMBING CONNECTION AUTUMN 2015
Following this, I then offer some cheaper options,
explaining that because of the age of the pump and valves
I cannot guarantee they are working correctly, even though
they turn on. I suggest that we can start by replacing the
roof sensor first, then the pump and then the controller if
need be. I do explain that in the long run this will cost them a
lot more as nothing lasts forever.
I give them separate pricing on the roof sensor plus
installation, controller plus installation as well as a price on
pumps and valves so they have all the information to make
a decision from. I once again reiterate that I can fix the
system 100% with the pump station as I know it gives the
customer the best possible result for their system. It also
means I make reasonable margins on the product. With this
being said, I also know that if the customer simply chooses
to replace the roof sensor and the system fails in a week or
month, I can comfortably charge to go back and replace the
pump or controller if it needs it.
By taking this type of approach I know I can go to any solar
hot water repair and be paid to fix the system.
Another good tip is to always ask the customer to send
you a picture of the controller as these really are the key. If
you know what controller was used with the system you will
know what sensors to use and how to fix the system before
you get there. This will save you time and the customer
money. It will also give you time to call the customer back
with the times that you are available to fix their system. If
they call while you’re in the middle of a job this is handy.
It will also allow you to provide the customer with some
information on the system they have and other possible
problems associated with that system and controller before
you arrive.
PUMP STATIONS
A complete pump station with digital controller is one of
the best tools any plumber can carry in his truck. They can
be used as a kit for a job or be broken down and the parts
used, then replaced after each job. This means plumbers
who don’t repair a lot of solar only need to carry minimal
parts.
You need to find something that consists of a good UV
proof pump station housing. You’ll need a good solar pump
like the Grundfos 15 20 CIL with either a RESOL or Senztek
solar controller featuring a digital display and sensors that
can handle high temperatures, including all new valves non
return and flow meter. As an example, we sell complete
pump stations on the website in the trade section for around
$500. Plumbers sell them for $700-$800 plus labour so
there is a good margin to be made.
In the next edition we’ll talk about tank sensor placing,
compare solar hot water controllers and look at a solar hot
water circulating pump.
Mathew Briggs is a commercial plumber and director of
– specialising in solar hot
water replacement parts for all systems.
Solar Hot Water Parts
SOLAR FIX
MATHEW BRIGGS
IMAGE 1: A fully concealed complete pump station.
IMAGE 2: A circulating pump exposed to the elements.
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