subota, 05.11.2011.


Sink drain pipe repair. How to repair rundll errors. Repair broken toilet flange.

Sink Drain Pipe Repair

sink drain pipe repair

Greenbooth Reservoir bellmouth overflow (5)

Greenbooth Reservoir bellmouth overflow (5)

Greenbooth Reservoir took over two years to build and was completed in 1961, at a cost of ?2,101,000. It was planned and built by the Heywood and Middleton Water Board. The dam itself is at the southern end of the Naden valley and it is the lowest of four reservoirs built in the valley. The dam is 117 feet high and 1,000 feet long

It is built on a concrete foundation trench and has a central core of natural puddle clay, which is watertight whilst retaining the ability of moving without cracking. The clay was laid in the traditional method – by men walking about upon it and trampling it with the heels of their boots (much as you would heel in a plant in a garden). On the upstream side of the builders used a harder shale that allowed the clay core to stay damp, and on the other side of the dam they used a more compact kind of sub-soil, in order to stiffen the sloping embankment. Fissures in the rock along the reservoir sides had to be sealed before it could begin to be filled.

The tunnel carrying the main outlet and overflow pipes was completed in 1961. Water from Greenbooth is piped to the filter house at Clay Lane reservoir, where it is purified for domestic use. The reservoir increased the supply of water in the Heywood & Middleton areas by 7000,000,000 gallons.

There was a problem with the dam in 1983 when it was reported that the dam appeared to be sinking. A round-the-clock watch was kept on the dam wall and 25 million gallons per day were drained from the reservoir to relieve pressure on it. Repairs were carried out and by 1986 the reservoir was full again.

Yolo Bypass levee repair

Yolo Bypass levee repair

Drainage pipe awaits placement inside a Yolo Bypass levee in West Sacramento, Calif., Aug. 18, 2011. Under its West Sacramento Project, the U.S. Army Corps of Engineers Sacramento District is repairing a slump in the levee and installing a drain and pumps to redirect water seeping into the levee. The perforated pipe, wrapped in a permeable sheath to keep out dirt, will collect water seeping into the levee and channel it into the bypass. Since 2002, seepage has been causing the levee to sink by about two feet a year on average, Corps engineer Greg Solakis said. (U.S. Army Photo/Todd Plain)

sink drain pipe repair

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