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Finding good plumbers in the UK is difficult. Need a plumber in an emergency and youve got a real problem.

Theres lots of articles available on selecting plumbers. Weve all heard the advice - get quotes, follow up references and ask friends and families for referrals. All good stuff but it makes it sound as if people needing a plumber have a choice available to them.

This really misunderstands the issue which the average householder faces. Yes we do want to find a great plumber, that knowledgeable, polite, punctual, reasonably priced paragon of virtue but before we get that far, we have to find a plumber who is prepared to do business with us.

If you need a plumber in an emergency, youll either find the ones which have priced themselves out of the market and so are often available Mr or Mrs Itll cost you! or their more reasonably priced cousin Dave Quickest I could get to you is next Wednesday. Not great if you have a leak and its now Sunday.

Indeed the position is not much better if you are planning routine work such as having a boiler serviced or a bathroom installed. Getting a quote can be a challenge getting the work started much more difficult.

Now, according to recent reports, the position should be easing.

Over the past few years, the press has run stories about a shortage of plumbers. In 2003, the British Plumbing Employers Council estimated that the plumbing industry would need to recruit 29,000 new entrants over the next 5 years. This led to reports of City workers leaving their jobs in the hope of earning 70,000 a year as a plumber.

More recently, however, there are accounts of workers with plumbing experience from Eastern Europe filling vacancies on building sites and a surplus of trainees trying to find jobs.

For the householder, this should mean that finding a good plumber who is available is much easier. The logic is fine but plumbers who are available for work are still an elusive breed. So if you have water pouring through the ceiling or your new bathroom arrives next Wednesday, read on for hot Hints on tracking down a plumber.

hot Hints for Finding a Plumber

• Asking for recommendations from family and friends is always a good first port of call.
• Check out one of the internet directories on-line you can search for plumbers close to you and the better guides give the plumbers the space to provide details of their experience and specialist skills. Remember to mention the directory when you call some have arrangements where the plumbers offer a discount.
• Look in your local parish magazine. Often the plumbers who advertise there live close by in an emergency someone who is just down the road may well be quicker, cheaper and, more importantly, willing to turn out.
• Try your local paper. Some plumbers will advertise in the classified ads all year round, others will appear only when they are not busy increasing your chance of finding someone who says yes.
• Ring your local letting agent letting agents usually have a team of tradesmen and women who are set up to respond quickly to problems faced by tenants of the agent. Their plumber may be willing to help you.
• Call your plumbing supply shop the staff get to know the regulars really well and are likely to be able to suggest someone who is not only good but who is available to take on your job.
• Plan in advance, every time, a friend has plumbing work done ask them who did it and if they were any good. Keep details of the recommended plumbers. Then, when the leak or blockage occurs you know who to phone straight away.

Once youve found a possible plumber, do take steps to check them out. In reality, plumbers are no more likely to be rogues or cowboys than anyone else and most are extremely professional and hardworking. But erring on the side of caution is probably wise.

Take particular care if you are employing a plumber to carry out gas work. Check that your plumber is registered with CORGI. Registration numbers can be checked on CORGIs website - www.corgi-gas-safety.com. Operatives working for a registered installer will also carry a card which can be checked by a householder.

Good luck finding your ideal plumber. If you find a really great plumber in your area, please do let me know via my website.

Caroline Blatchford is the founder of Local service Guide which helps people to find the local services which they need in the UK. Whether you need a plumber, a restaurant or a letting agent, go to http://www.LocalServiceGuide.com

To pass the BSCI exam and earn your CCNP, you've got to know ISIS inside and out. There are many similarities between ISIS and OSPF, but one major difference is that ISIS has three different types of routers - Level 1 (L1), Level 2 (L2), and L1/L2.

L1 routers are contained in a single area, and are connected to other areas by an L1/L2 router. The L1 uses the L1/L2 router as a default gateway to reach destinations contained in other areas, much like an OSPF stub router uses the ABR as a default gateway.

L1 routers have no specific routing table entries regarding any destination outside their own area; they will use an L1/L2 router as a default gateway to reach any external networks. ISIS L1 routers in the same area must synchronize their databases with each other.

just as we have L1 routers, we also have L2 routers. Anytime we're routing between areas (inter-area routing), an L2 or L1/L2 router must be involved. All L2 routers will have synchronized databases as well.

Both L1 and L2 routers send out their own hellos. As with OSPF, hello packets allow ISIS routers to form adjacencies. The key difference here is that L1 routers send out L1 hellos, and L2 routers send out L2 hellos. If you have an L1 router and an L2 router on the same link, they will not form an adjacency.

An ISIS router can act as an L1 and an L2 router at the same time; these routers are L1/L2 routers. An L1/L2 router can have neighbors in separate ISIS areas. The L1/L2 router will have two separate databases, though - one for L1 routes and another for L2 routes. L1/L2 is the default setting for Cisco routers running ISIS. The L1/L2 router is the router that makes it possible for an L1 router to send data to another area.

In the next part of my ISIS tutorial, we'll take a more detailed look at those ISIS hellos!