Pump woes on the Rock Farm

One of the joys of living on a rural property is beautiful fresh rainwater stored in your own tank.  The water tastes fresh, is free from chemical impurities and is deliciously soft.  It is your water, and you can use as much or as little of it as you like.  The consequences of your usage are yours alone to deal with.  It is a wonderful part of living on your small farm.

Until your pump dies.   And then you need to get it fixed. Quickly.

We were in a fortunate position that our pump gave us warning it was on the way out.  It would fail to operate, and a simple reset by turning it off and on again would fix it.  For a while at least.  When the interval between resets became daily, it was time to take action.

Davey Pumps were called, and their technical department were most helpful.  They told me that the most likely culprit was the pressure switch in the controller.  The type of controller we had fitted hadn’t been made in around 20 years, giving us some indication of the age of the pump.

I was advised to take the pump to a repair agent, where the pump could be bench tested.  One phone call later, and the pump was booked in the following morning for a thorough inspection.

The pump was easy enough to remove.  The worst bit was the cold fingers on the chilly morning easing the pipe fittings from the pump.

And in no time at all, the pump was in a tub on its way to town for inspection.

After a few hours, I was told that the pump itself was in good condition, however the controller was indeed stuffed.  Thankfully the new controllers are compatible with the older pumps, meaning we were able to fit the new controller.  A few minutes work and some new plumbing tape and the pump was reinstalled and working a charm.

This little process taught me the value of buying a quality Australian made pump, particularly for critical components such as house water.  The service and support offered was excellent, and instead of buying a complete replacement unit, I was able to save a small fortune by buying just the component I needed.

I am looking forward to another twenty years of trouble free water supply 🙂

Advertisements

Water Water – Improving a watering system

When we moved to the Rock Farm, our garden was irrigated by dam water, pumped by a petrol pump.  To water the garden, we would have to walk down to the dam with a can of petrol, and try to start the pump.  More often than not, the pump would be hard to start and our garden would be left parched and dry for another day.

The first step was to give the petrol pump a service, and to build a small shelter or pump house for the pump.  This helped considerably, and the pump is now far easier to start.  But it was still a long way from the house, and turning a tap on to water the garden required a considerable effort.

Water water - Improving an irrigation system

Petrol pumps are useful for moving large volumes quickly, but are tiresome when used to water gardens

Something had to be done, and we decided on a two-phase approach.  The first phase was to install a header tank up near the house, with an electric pump on it that could water the garden on demand.  The second phase was to replace the petrol pump with a solar pump and ball valve that would keep the header tank full at all times.

The most cost-effective tank for its size is the 5 000 gallon / 22 500 litre poly tank, and we ordered one from our local rural supplier.  It arrived a week or so later and was carefully placed (dropped) from the truck on my leveled site.  Thankfully I was able to move the tank into the right position with a couple of ropes and the four-wheel drive.

Water water - Improving an irrigation system

Positioning the water tank – using four-wheel assistance

The plan was for the existing piping system to remain largely unchanged.  A short extension was added from the 2 inch feeder pipe to allow the tank to be filled by the existing petrol pump.  I needed a mechanism to bypass the new electric pump, so I added a  few valves to allow me to fill the tank, and then run the electric pump from the tank back into the piping system.

Water water - Improving an irrigation or garden watering system

Plumbing inspector checks the scope of work

It took a while and a few attempts to get the piping installed and checked for leaks.  In the configuration below, the petrol pump on the dam can be run to fill the tank.  Once the tank is filled, I can then switch two valves and use the electric pump to irrigate the garden.

Water water - Improving an irrigation or garden watering system

Testing for leaks – always a nervous moment… can you spot the little drip?

The fittings I used are good quality, but decidedly expensive.  The pump is a cheap one, but easily replaced should I need to.  I have found cheap fittings don’t last, but have had good luck with the cheaper pumps.  To give the pump a bit of protection from the weather, I also built a small shelter for it.

Water water - Improving an irrigation or garden watering system

Building the pump shelter

We leave the power switched off and the tank isolated when not in use, as we have a few leaks in the irrigation system that I am still working through.  That said, it is much easier for us to open a valve and turn on the power to have water on demand in our garden.

Water water - Improving an irrigation or garden watering system

All done

During the peak of summer, we were able to water our garden every couple of days, without the difficulties of starting the old petrol pump.  We found that because we could use the water easily, we did use the water, and we were able to nurse new fruit trees through the worst of the summer without loss.

Water water - Improving an irrigation or garden watering system

And now water restrictions are lifted, we can use the water for all sorts of important things, like seasoning new swags!

The second phase of our plan – the solar pump on the dam – has been relegated to the bottom of the priority list for the next few years.  The little Honda pump keeps working away without fault, and now I am only running it once or twice a month, my tolerance and patience with it is much less likely to wear out.  It also provides a good redundancy in case of bush fire.

Water water - Improving an irrigation or garden watering system

Old faithful gains a reprieve!

Oops – Simple plumbing repairs are sometimes necessary

Whilst a bubbling brook by the back door sounds wonderfully peaceful, there is nothing peaceful about finding a new water source with a jack hammer.  This happened to me the other day, and caused me some angst.

I was digging to put a new fitting on some 2 inch poly pipe.  I had carefully followed the pipe and avoided the water inlet to the house.  As I found the pipe I was looking for, I brought the jack hammer in to expose the pipe so I could clean it prior to fitting the new joiner, when all of a sudden, water shot up at me.

Jackhammer hits a water pipe

Oops…. The mighty hound is not impressed.

As is always the way when I have just broken something or done something spectacular, Jo arrived and surveyed my handiwork.   So I did  the only sensible thing I could think of.  I enlisted her help to bucket out the water and survey the damage.

Clearing around the broken pipe

Digging reveals the extent of the damage

As feared, I had penetrated a down pipe.  The pipe was full of water destined for our water tank.  It was imperative that I get the pipe repaired as soon as possible.  At this point in time, I could have called a plumber to come and have a giggle at my expense – or I could have a go at repairing the joint myself.

The problem with repairs to 90 mm pipe that is embedded in the ground, is that you can’t use two slip joints to repair the pipe.  I had to use a flexible rubber joint – and of course I didn’t have one of those in the shed.

After a quick dash to town for the relevant bits, it was a simple process to cut out the damaged pipe (it was cracked as well as holed).  After a trial fit, the slip joint was glued into position.  The flexible joint was then slid up over the gap and the hose clamps tightened.  I used a smear of waterproof lubricant to make it easier to slide the flexible joint over the pipe.

Slip joint and flexible coupling repair to 90mm pipe

Testing for leaks

After refilling the system with water (including several flushes) the system was checked and found to be holding water.

Repair complete - 90mm down pipe and poly pipe repair

Repairs complete

I was then able to put the new joint on the rural poly pipe above the down pipe and declare the little job completed.

Well – there was the small matter of filling in the hole and relaying the bricks, but the hard bit was done!