QUOTE(Michael J. @ Nov 18 2011, 08:18 AM)
Mr Farmer:
Sorry, can't see the picture, so I'm assuming it is a single pond.
For single ponds, I would not think placing manure and fertilizers as a good idea per se, as it would encourage algae growth, which will then clog the sprinkler system. Fish you may add, but keep bigger fish. When I was managing oil palm nurseries, we used to have a problem a problem with guppies (ikan longkang) clogging up the sprinklers. If you do want to do add stuff before watering, I would suggest you build a sump, which will act as a temporary collection point for water. You could use gravity to do the job. But this helps to ensure the water you apply is relatively free of clogging materials.
Para has made some very important points. Install stop valves, and manage the watering regime. I believe you already know how much HP your pump is and so what kind of water pressure to expect.
This might be a strange question, but what droplet size are your sprinklers? And what's the rate of release per hour?
Our pond is actually a small creek. As the water was too little during the dry season, we had dug into the creek and converted it to a pond. We had it done in stages, on the upper level a long pond and lower level is a small pond. We kind of lie built a small dam across it. The main long pond is also used as a reservoir as we pipe in some water via gravity feed. As it is rain season here, no problem now, but we were desperate for water last month. There are no clogging problem at the moment but shall see how to incorporate a sump of a screen intake filter.
As the pump is an old unit, we do not have much information about it.
Just that 143 cc, 3.5hp engine. The consumption is quite heavy, may have to look for an alternative lower consumption engine, perhaps a diesel type. As the sprinkler also does not come with any specification, everything is based on guess work & trial. We already had stop valve install as we were using manual labor with garden hose (16mm flexible garden hose) attached to the main PP pipe.
The green color coded sprinkler is listed as type 323, did not find any specs on the net. The nozzle side has a smaller water droplet size while the turning activator side has a bigger droplet size. These sprinkler is prone to pressure and water flow problem, both high and low. It has a window of workable pressure and water flow and it does not work above or below this window. The throw is about 20 ~ 25 ft diameter. We manage to fit 4 at the moment.
We had installed a Butterfly type sprinkler. From the design, the operation window (pressure & flow rate) is much wider. The water droplet size is much fine, bigger than mist. The throw is much smaller, about 12 ~ 12 ft diameter. Shall be trying to install more points.
Nov 18 2011, 08:18 AM
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