Has anyone tried tuning the inlet holes on the 1250?, they are very badly designed I
think!, if getting more/faster water to the impellor is important, then definatly badly designed!!.
I'm on about the 'peice' that the inlet barb screws into. it looks kinda like a ...., well I don't know what it looks like so lets call it the 'inlet housing'. it's the round peice with an 'O Ring' on it that clamps and seals onto the pump body with a 'ring~like' retension thingy with four stops on it
.
The inlet housing has qite a large bore but the part that lets water enter into the impellor is made of four small 'slots' around a 'cup' that holds the nylon centre spindle(of the impellor) in place. the bore of the housing actaly
narrows down as it nears the 'slots'.
These slots could be 'ported' or 'opened up' quite easily with a dremel or needle files. Has anyone ever done this?. I imagine you could easily
double the area that water enters through without weakening the housing at all.
I thought of using a peice of Cu(with hole for spindle, and doing away with the 'rubber gromet' thing) to 'bridge' across the gap instead of the 'too large' cup and rubber design. it would be alot more streamlined and less flow restrictive.
The thing is I want to know whether this is important for flow, whether this is actualy
restricting the water flow to the impellor. whether the impellor
could shift more water, or wether this has been balanced in the design.(this I doubt considering the nature of the pumps intended usage. it would be easier to just make it bigger , more powerful than to tune it)...