Referring to my previous post...
I fitted a 18" x 18" x 64" Coffin tank in my loft but the supplied ballcock was very noisey when shutting off due to the slow rate of rise of the water level in a tank of this shape.
Several 'Gurus' suggested a Torbeck valve as a replacement. I fitted this device last night and............ peace and quiet. The Torbeck shuts off quickly and with minimum noise.
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