flow and return under floorbards for new rads

[Redhotferrari]

Hi Guys,

replacing a few rads upstairs and moving most of them, reason for my question is the pipework under the floorboards.

for example, two adjacent rooms, working on both rads, gonna replace the pipework betweem the two, new tails etc. With the flow (for example) running across floorboards, teeing upto one valve continuing into next room, the return will need to cross the flow and up to the valve, whats the best way of doing this? Make crossovers, or buy them, or is there a better way of doing this.

Cheers

 

[lagunaglen]

Plastic is best for diy work.