Water won't pump away

This is one in a series of A Guide to Narrow Boat Problems.

Problem 
Water from eg shower tray won't pump away
Cause
Failing pump, blocked drain pipe or blocked pump filter.
Solution
If pump sounds as if it is working but water still doesn't pump out, switch off, take off pump housing and take out the filter. Clear of debris. Re-assemble. To clear pump  use a manual plunger and briskly pump up and down. Finally, if necessary, poke stiff wire down the drain hole from the outside.
Avoidance
Clean pump filter as part of regular maintenance.

The spring pump out

Spring has arrived at last. So on the first really warm day for ages, and being the first of May, what better than to get aboard Patience and take her out for a brisk pump out.
Last season, best forgotten for the weather, left us without time for pumping out as part of our routine winterising - so today we arranged for one by the nice chap at Nene Valley Boats. I think actually he was a bit disappointed that we couldn't produce more - but with last year's holidays cut short and a general tendency by us to use local pubs' loos whenever we are customers, I suppose we just couldn't fill the tank.
So here we are, just one lock and a quarter hour from our mooring at Oundle marina, (where they are planning to have pump out facilities as part of their development) and we are using Nene Valley Boats' portable pumpout, towed by a fine red landrover.

 

and finally, for those who are curious engineers, here's the very pump itself.

Later, inspired perhaps by the nice man at Nene Valley Boats, John spent some time reassembling our toilet pump. As it once cracked in a deep frozen winter we now drain it thoroughly, but this time it took a little while to get the gasket in place to ensure effective pumping. Nevertheless, job done and a full complement of fresh water on board we are now ready to go places.
There may be time for some painting up, but the river awaits ....