Too much condensate flowing?

[Bp89]

It’s a megaflo with an internal bubble, this needs regenerating- there are instructions written on the side of the cylinder - follow these.

......but there is no water dripping into the tundish.

 

[John.g]

It’s a megaflo with an internal bubble, this needs regenerating- there are instructions written on the side of the cylinder - follow these.

To recap (my view). We have a unvented cylinder which doesn't eject water from either the TPRV or the expansion valve since no sign of water flowing in their common tundish yet excess condensate appears from the condensate pipe when only heating hot water, also when HW is drawn off then condensate flow ceases?.

Water also appears somewhere (can't remember where) else which might appear to be from the primary (boiler) circuit, yet the red E.vessel doesn't require topping up as both filling valves are closed and presumably the pressure isn't rising to 3bar which the relief valve on top of the E.vessel is presumably set to and also discharges into its own tundish which can be observed as well.

 

[Bp89]

To recap (my view). We have a unvented cylinder which doesn't eject water from either the TPRV or the expansion valve since no sign of water flowing in their common tundish yet excess condensate appears from the condensate pipe when only heating hot water, also when HW is drawn off then condensate flow ceases?.

Water also appears somewhere (can't remember where) else which might appear to be from the primary (boiler) circuit, yet the red E.vessel doesn't require topping up as both filling valves are closed and presumably the pressure isn't rising to 3bar which the relief valve on top of the E.vessel is presumably set to and also discharges into its own tundish which can be observed as well.

 

[Bp89]

To recap (my view). We have a unvented cylinder which doesn't eject water from either the TPRV or the expansion valve since no sign of water flowing in their common tundish yet excess condensate appears from the condensate pipe when only heating hot water, also when HW is drawn off then condensate flow ceases?.

Water also appears somewhere (can't remember where) else which might appear to be from the primary (boiler) circuit, yet the red E.vessel doesn't require topping up as both filling valves are closed and presumably the pressure isn't rising to 3bar which the relief valve on top of the E.vessel is presumably set to and also discharges into its own tundish which can be observed as well.

That's a good summary. The water from somewhere else is seen dripping from a 22mm pipe on an external wall.