Tools

You can use the good ole hacksaw, but there is a better way. The hacksaw leaves burred edges and can be unwieldy, but a good set of PVC cutters will slice thru PVC and black poly easily and give a clean cut every time. They last for ages and you can pick up a pair at any retic shop. Most cutters suit up to 25ml pipe, but you can get some that will do up to 40ml pipe also.