Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Does it make a difference when piping a mod con boiler with multiple zones and using pri/ sec piping and closely spaced tees as your hydraulic separation in lieu of a hydro separator ,if you pipe the sec circuits out of the branch of the tee s,and have the pri circuit thru the run of the tee s, instead of having the primary piped into the branch of the tees,does the system operate different each way .thanks