Hi I would welcome anymore suggestions as I am about to blow my top.
Got a s plan hybrid system it looks as though the only 22 mm is from the flow and return. there are 3 15mm drops each feeding at least 3 rads tothe ground floor.
The problem is that the rads to the ground floor are not getting warm.
So far I have dosed the system with SM-4 which had little effect. Did not want to power flush as the system is very old and the valves are shall we say alittle leaky and some of the rads are corroding at the bottom.
Tried to balance the system the only way I could get the downstairs bedroom rad warm was to lock off the 3 hall rads, then leaving the upstairs rads luke warm.
So changed the leaking rad valves, took off the rads and flushed them through.
Locked off all the rads except the furthest one, after an hour the rads was still not warm. (before doing this bled rads and air from cylinder)
The situation is exactly the same, tried pulling the water through, as it only gets within 1 foot of the tee. there is not blockage in the tee as I have checked it.
Any suggestions?
Got a s plan hybrid system it looks as though the only 22 mm is from the flow and return. there are 3 15mm drops each feeding at least 3 rads tothe ground floor.
The problem is that the rads to the ground floor are not getting warm.
So far I have dosed the system with SM-4 which had little effect. Did not want to power flush as the system is very old and the valves are shall we say alittle leaky and some of the rads are corroding at the bottom.
Tried to balance the system the only way I could get the downstairs bedroom rad warm was to lock off the 3 hall rads, then leaving the upstairs rads luke warm.
So changed the leaking rad valves, took off the rads and flushed them through.
Locked off all the rads except the furthest one, after an hour the rads was still not warm. (before doing this bled rads and air from cylinder)
The situation is exactly the same, tried pulling the water through, as it only gets within 1 foot of the tee. there is not blockage in the tee as I have checked it.
Any suggestions?