Recently to change my tap, i switched off my heater and touched the under part of pressure release valve (some bit water went out through drain). Afterwards, when the tap was fixed and all were normal.
But I noticed that the hot water pressure went down. The manufacture is "Santon".
I cant find much settings in the heater and document and everything seems to be in order.
Once I release the pressure, does it take some days to build up?
Is there any tweak to be done to the "Line Strainer" or "the adjuster below" to bring more pressure for hotwater?