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The Twelve Days of Christmas With Hydro Cleansing | 2. Case Study NPL

“On the second day of Christmas,
my true love sent to me,
two feet of tree roots,
and Hydro Cleansing’s Mega-Heat…”

Continuing our twelve day countdown to Christmas, today’s blog is a nice juicy case study! However, this isn’t just any case study, this case study features blocked culverts, four foot long tree roots, over 50 TONNES of silt, and of course, an expert team of Hydro Cleansing engineers getting the job done. 

Back in the Summer we were called out to deal with some blocked culverts, syphons and silt traps by the NPL. On our arrival it was clear that there was something seriously big blocking the syphon under the railway, even our camera couldn’t travel underneath to get a clear picture. Upon further investigation the engineers discovered that the blockage was clusters of tree roots growing through the tunnels. Check out the full scope of works below!

blocked culvert case study christmas

Client – National Physical Laboratories | Kings River Outfall Desilting

Scope of Works – Desilting of culvert | Root cutting in syphon under railway | Desilting of silt traps

  1. The culvert in Normansfield Road had a high level of silt and elevated water level, the camera was then unable to return a picture of the internal condition of the pipe. We needed to remove this silt and reduce the flow during the survey, we then proposed to undertake this with a super combination unit taking one day to complete and resurvey.
  1. The syphon under the rail way had root ingress which prevented the passage of the camera, to remove this we needed to reduce the flow through the culvert and use high pressure root cutting with specialist root cutting nozzles suitable for large bore pipes. We took one day to complete and resurvey.
  1. The silt traps in five manholes needed de-silting, they contained an average of 1m of silt each. The silt traps are 2.5m in diameter which will yield approximately nine tonnes each. We took two days to complete.

case study blocked culvert and camera christmas

case study blocked culvert and roots christmas

Check out those roots! Job done!

How To Fix a Blocked Sink | Hydro Cleansing’s Handy Guide.

blocked sink fixed

What to do when you have a blocked sink

First of all, don’t panic! It’s usually very simple to fix a blocked sink, and can be done without buying any expensive equipment or flooding your kitchen. Follow this easy guide to diagnose and fix the problem.

Remember to look after yourself and your property

– Rubber gloves protect your hands while dealing with domestic blockages

– You can cover the bathroom or kitchen area with plastic covering if you are worried about damaging the surfaces

– We advise having a couple of strong bin liners with you as it may be necessary to dispose of waste

Small blockages

– Start off by pouring boiling water directly down the blocked sink. Two full kettles should be enough to move any stubborn organic matter

– If boiling water doesn’t do the trick pour down half a box of baking soda then pour down a mug of vinegar, swiftly followed by the plug stopper or old rags

– Wait at least 30 minutes and then pour down another kettle of boiling water

Larger blockages

– If the vinegar and baking soda volcano didn’t shift your sink blockage, it might be time to introduce the plunger

– Fill the sink or bath with a little water (enough to fully cover the drain)

– If there is an overflow, plug it up with rags or a tea towel

– Wet the plunger and place over the drain

– Ensure you have a firm seal and use sharp fast plunges to remove the clog

– Remove the plunger and the blockage should flow away, if it does not then repeat.

– If you still have a blocked sink, this indicates that the problem is further down the pipe and will need an engineer to come out and investigate

 Who is liable for the blocked drain?

Liability for drainage issues can be a minefield. It can be the responsibility of:

– Your local council

– The water board

– Housing association

– Property owner

– Letting agent

– The tenant

If you are renting, contact your landlord or letting agent before calling out an engineer. If you are unsure who’s responsibility it is, call our team and they will contact local authorities on your behalf and arrange works.

Ways to prevent blocked sinks:

– Avoid putting any solids down your sink; even a cotton bud will get wrapped in wipes and cause a blockage somewhere

– Using a plug strainer is a cheap and easy way to prevent a build up of kitchen waste in your pipes

– Using drain cleaner or the baking soda and vinegar mix once a month will help to keep your pipes free from blockages

– Never ever pour fat or grease down the sink. This is sure fire way to block your drainage system

 What to do if the blockage does not go away:

Give us a call! Our skilled engineers are available 24/7 so can attend a job at any time to assess the problem and provide a solution quickly.

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Hydro Cleansing assesses Storm Desmond

Experts have estimated that Storm Desmond has already caused an estimated £500m worth of damage, with over 5,000 homes in Cumbria alone affected by flood damage. With more rain falling in the past 24 hours, local residents and businesses are yet again facing further chaos and disruption today. The town of Glenridding is underwater yet again, with a reported 66mm of rain falling, overwhelming rivers and leaving the town’s residents stranded.

Clean up efforts have been ongoing in the worst affected areas including Carlisle, Keswick and Cockermouth. However, many households are still without power and thousands of local residents are facing the possibility that their homes will not be ready to live in until the New Year.

With local authorities overwhelmed by the scale of the damage, Hydro Cleansing are providing support to the community in Cumbria by sending complimentary Road Sweepers and Tankers with crews from our depot in Croydon. Our volunteers have headed to the worst affected areas to removing large quantities of silt and mud that can cause further flooding if it is allowed to enter the drainage systems.

For the last few days we have been working alongside Cumbria County Council, DEFRA, the Police and the Army, utilising the experience we gained during the 2014 floods in the South of England, to ensure the best possible assistance is given.

With more rain expected in the next few days, along with snowfall and strong winds, emergency services have advised local residents to not take any risks around flood waters. A spokesman for the Cumbria Police has urged the public “not to approach or go near any flood water as it is extremely fast flowing and can be a threat to people’s lives”.

Please call us on 0800 740 888 for immediate assistance or visit www.hydro-cleansing.com for live chat.

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