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We hope that you not only find what you are looking for but maybe even learn a little more while you are here.

From here you can view a list of the latest blog articles below OR filter them by category OR see the full archive of blog articles at the bottom of the page.

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Our blocked drain operatives are fully trained and equipped to unblock your drains whatever the cause.
Here are the benefits of calling ASL Limited for your blocked drain, we will: Attend fast. Attend fully equipped. Attend once. Communicate. Are proactive. Know our customers. Attend fast. We have engineers on hand to attend emergency blocked drain call outs within 2 hours. If you don’t need us in an emergency, you can...
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This is a map of the Ultra Low Emissions Zone around London.
​Announced by Boris Johnson in 2014, the Ultra Low Emission Zone (ULEZ) aimed to reduce pollution and improve air quality in London Today, Monday 25 October 2021, the zone has been extended from central London to create a larger zone up to the North Circular Road (A406) and South Circular Road (A205). ASL Limited...
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Glossary of drainage terminology jargon buster – Photo by Jon Tyson on Unsplash
At ASL Limited we like to give our customers as much information as possible so that they can make informed decisions about your drainage choices. This glossary of drainage & private sewage system terminology could go a long way toward helping you do that. A Aerobic bacteria. Aerobic organisms or aerobes are organisms...
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This is a photo of an open manhole just like the one found under the bedroom carpet!
You would think that a standard house purchase survey would include the drainage plans, wouldn't you? Unfortunately, many people wouldn't think to ask what is included in a house purchase survey. Many more wouldn't consider asking for an extra survey to be done. Why? Because until something goes wrong, these things are...
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Let ASL Limited clear your smelly drains
Bad smelling drains can be a sign of a number of things. Wow this weather is amazing and it's wonderful to be able to spend time out in the garden – but, my goodness! – it can really highlight bad smells coming from our drains and that is not pleasant at all. The trouble is they could be giving off bad smells for a...
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The impact of Google reviews on our business makes it too easy for competitors to impact our presence negatively.
Maybe it's because Google algorithms are set to downgrade businesses with bad reviews. Maybe it's because we like to receive a pat on the back for all our hard work. Maybe it's because our motivation for doing this job in the first place is knowing we have given our customers one less problem to deal with. Whatever our...
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How to use a sink plunger effectively
The shower drain is blocked! Oh my goodness - it can't be full of hair again surely 🤢 - can it!? It doesn't seem to matter how much you pull from your head when you wash it and ball up for the bin, over time there still seems to be enough to home a small gerbil when you finally get round to pulling it from the plughole...
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A photo of rainwater or 'surface water' guttering and down pipe - but where is it going?
"Will someone please help me?" We often get calls for help because sewage is flooding out onto someone's drainage field. In many cases, we explain to customers that there may be rainwater getting into their sewage system. We cannot stress enough the importance of preventing this. So much so here the subject now has its...
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This image shows fat, grease and oil build up in the inspection chamber of a domestic sewage treatment plant.
When you pump raw sewage to a treatment plant, certain processes take place. Process; initial separation of solids from liquids Retention time is; the time it takes for solids to separate from the wastewater and how much is retained in the holding tank. An Influx of raw materials which are not human waste can take a...
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Preparation and Planning to install a new sewage treatment plant.
Before obtaining estimates: Drainage surveys are an essential part of the garden design – before the treatment plant estimating process. You may be able to provide visual diagrams – If you’ve had plans drawn up by an architect within 2 years, they can be very helpful to us. On most occasions, we advise a professional...

ASL Blog Articles Archive

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