Sorry for my multiple questions as a noob - I have adopted a pool which will be renovated in next few weeks - so there's a few things I need sorted before then...and the folks here have been great.
I need to run some piping around my bean shape pool - and I think I am becoming a bit obsessive about reducing friction and increasing flow for my low speed pump I will buy. I know 45 degree connectors are better than 90 degree ones to reduce friction - or is it better if I bend the pipe to have a natural curve....with no sharp angles? I can bend the 50mm piping by filing with sand and heating. I am not sure if this is an overkill - or if it will make a difference over time. Pool is 9m x 5m.