Fitted a new salamander ct55 shower pump as old one expired after about 5 years but had to change the pipework as the new pump in/outlets go straight up and the old ones were on the side and up. All worked perfectly to start with but then nothing came out the taps when turned on until 5-10 seconds later. Now nothing comes out at all and pump not working. I've a horrible feeling I've piped it wrong and not got enough straight pipe to give enough of a constant water flow to pump therefore causing airlocks and possibly now damage to the pump. I've read you need about a metre of pipe from cylinder to pump but can't find anything that says it has to be straight. Although logic suggests it should be but pipes are angled so difficult to fit and the old one worked ok for 5 years. The pump is fitted into a holiday flat on a hot water supply only as the cold comes in direct from the mains. However it goes to bath, basin and kitchen sink but all are within 3-4 metres from pump and it all worked ok with the old pump. And help and advice is much appreciated.