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| Thread ID: 98290 | 2009-03-18 23:51:00 | Tap - knocking? | sarel (2490) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 757640 | 2009-03-19 18:12:00 | If you vary the opening of the outside tap, does this stop / otherwise affect the water hammer? No change at all with varying openings. Opened all taps in the house last night and let it run for 30 mins - no change. sarel |
sarel (2490) | ||
| 757641 | 2009-03-19 21:15:00 | I spoke to a plumber from KPL he said it might go away if you change affected taps, can be caused like the star wars dude said by play in the spindle. Pressure goes on spindle slams forward pressure drops spindles goes back causing pressure to build up again and so forth. You could also drop the water pressure by fitting a NEFA valve. |
prefect (6291) | ||
| 757642 | 2009-03-20 00:21:00 | NEFA valve- wtf is that? LOL Sarel |
sarel (2490) | ||
| 757643 | 2009-03-20 00:37:00 | A Nefa valve is the pressure reducing / regulating device fitted on the input of non-mains pressure hot water cylinders. Formerly known as Ajax valves; both names are trade names. Alas, they restrict the flow a bit too much for filling baths, watering the garden etc. (With the commonly available economy varieties) I don't think adding components to cure a problem elsewhere is a totally efficient solution. |
R2x1 (4628) | ||
| 757644 | 2009-03-20 00:38:00 | I don't know what youse guys use to heat water - I've heard the term "wet-backs" and others, so I may be a little off curve here for you...... Well Joe, because I live on the Mainland (otherwise known as the South Island) I have a superheater. Not sure what these other guys are talking about. ;) |
Winston001 (3612) | ||
| 757645 | 2009-03-20 02:07:00 | NEFA valve- wtf is that? LOL Sarel OMG and a Dutch speaking South African runs the factory thats makes them in NZ. |
prefect (6291) | ||
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