Dragonfly Exterior Parts

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Oval Port
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Underfloor drainage channels have been used for centuries but until the early 1990's they consisted of no more than a perforated pipe based on the Victorian idea of the porous clay pipe (or drain tile) often known as the French Drain after Henry French who took the idea from the UK to new England in 1856.

Modern derivative of the French drain involve different profiles for the pipe many are flattened which allow them to be place under the floor but above the footing which protects them from silting a d clogging, a common problem that affects old fashioned drain tile systems. It is generally considered a good idea to keep the drain system at this level for this very reason. It is also considered good practice to include inspection ports for servicing and maintenance. For an inspection port to be effective it should be more than just a 50mm diameter pipe connecting into the system. Ports around 150mm long and 50mm wide are better as they allow one to see inside the drainage channel and to effectively use a hose pipe to clean out if necessary. Some designers have included a special 'corner port' which allows access in two directions, i.e. along two walls from the one spot thus combining the functionality of one corner and two ports which would be necessary in a less imaginative system. The 'telescopic port' also allows the top of the port to be levelled flush with the floor which can be a problem with static height ports.

The drainage channels invariably have holes to let water into them. It is critical to ensure that the holes are smaller than the size of the stones that normally surround the channel otherwise the stones will enter and restrict the flow of water. Some new designs have replaced circular or oval holes with narrow slits in order to prevent this problem.

The outlet from the drainage channel should be sufficiently sized to not restrict the flow of water as it leaves the channel and enters the sump chamber. It is a mistake to use a 50mm diameter pipe as the outlet for a channel system that can deliver as much water as a 4" diameter pipe. This seems like common sense yet it is a common mistake.

Many modern systems include a vertical flange to allow any surface water on the wall to drain down into the system. In order for this to be effective the back of the flange has to remain open, however there is a growing body of opinion against this practice. Open backed flanges allow moisture vapour and microbial odours and spores to vent up into the room together with Radon gas if the property is in an areas affected by Radon. Also, having a wet wall draining down into the system is unhealthy as it contributes to mould and humidity to the atmosphere in the basement and the house above. It is considered better practice to have a sealed flange and if there is water running down the wall to conceal this with a suitable vapour-proof membrane.

Finally, a plastic channel that is constantly wet can develop a microbial slime which is unhealthy and can result in a restriction of water-flow. It is therefore a good idea to incorporate an anti-microbial additive such as Silver Nitrate into the plastic at the manufacturing stage.

So in conclusion the most superior features will include telescopic corner mounted inspection ports, a wide outlet, a drain channel with slits rather than holes and a sealed flange used in conjunction with a wall membrane.

For further information see the design guide waterproofing existing basements.

Raymond Foulkes, the author of this article has served for several years as the elected Technical officer of the British Structural Waterproofing Association (BSWA), in this capacity he was the primary author of the BSWA design guide 'A Guide to Waterproofing Existing Basements' a publication that has be come the benchmark text for the industry. He offers consultancy / expert witness work as well as a full contracting service see http://www.polycrete.co.uk and a unique basement waterproofing system for DIY basement waterproofing.

In the mid 1990's Ray Foulkes pioneered the use of bespoke sump and pump systems together with proprietary underfloor perforated drainage channels for basement waterproofing, a method that has now become commonplace throughout the industry.

Tour of English Cricket Team to Caribbean

1st test match would start from 4th February, 2009 at Sabina Park, Kingston, Jamaica while 2nd test match would start from 13th February at Sir Vivian Richard Stadium, North Sound, and Antigua. After 2nd match there would be one more tour match of England X1 and Barbados Cricket Association President's XI at Barbados on 21 February.

The 3rd test match would start from 26th February at Kensington Oval, Bridgetown, Barbados while 4th and final test would start at Queen's Park Oval, Port of Spain, and Trinidad on 6th March. After test series there would be one tour match of 3 days on 14th March. In this tour there would be only one 20 twenty match which would be played at Queen's Park Oval, Port of Spain, Trinidad on 15th March.

In the end of tour there would be played 5 One day internationals of which first would be played at Providence Stadium, Guyana on 20 March and 2nd would be at Providence Stadium, Guyana on 22nd March while 3rd and 4th match would be played at Kensington Oval, Bridgetown, Barbados and Kensington Oval, Bridgetown, Barbados on 27th and 29th March respectively. Last one day match of the tour would be played at Beausejour Stadium, Gros Islet, St Lucia on 3rd April and this last match would be a day and night match while other matches would be played in a day light.

English Captain Kevin Petersen has said to his board to make a choice out of him and coach. Batsman further said that he and Coach can not continue together with each other any more. England Cricket Board has started considering on the next coach name for up coming English Cricket team’s tour to West Indies and there are chances that former cricketer Ashley Giles would be appointed as next English Cricket Team Coach. If English Cricket Board gives his decision in favor of Captain Kevin Pietersen then English board may suffer loss of worth 2.5 million Pounds and this dilemma between Captain and Coach Peter Moores has put ECB into new trouble.

Managing director of ECB tried his best to make Pietersen understand but he replied that English Board should choose one person between me and Coach. Managing director said that current conditions can not be said well for board and we should make decision and this row should be settled before English Cricket team goes to Caribbean. He further said that we want such kind of solution which is good for English team.

The conflict between English Cricket Team Captain Kevin Petersen and Coach Peter Moores arose when Coach refused to include former captain Michael Vaughan in the squad.

Cricket livescore by ScoresPro.com

About the Author

Peri Witny is an author of Sports Articles at ScoresPro.com

timing on a mild built 454?

I have a 454 comp cams 280 magnum 234 duration 520 lift 91/2 compression large oval port 049 heads stock hei distributor 750 demon carb that's a little about my engine i have about 400 miles on it what should my timing be on it????

Set initial timing to 15 degrees and total to 35 without vacuum advance. Then connect the vacuum advance to manifold vacuum and set the vacuum advance give another 15 to 20 degrees advance at idle vacuum..... so you should be at around 30-35

Buoyant Proteas eye Test series success over WIndies
Port of Spain, Jun 9 (AFP) South Africa have every reason to start their three-Test series with West Indies tomorrow at Queen's Park Oval in a confident mood.

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