All posts by Drainage NZ

ALC Public Stormwater Thrusting and Welding


We sure love the big jobs that involve big machinery! In the above video you can view another successful job done in the Manukau district. This job involved a complicated thrusting of over 40 meters of 225mm HDPE pipe which is to be used as extension of the existing Manukau district Stormwater network. Specifically installed to accommodate a new subdivision in the area.  In the video you can watch how this pipe was directional drilled (under existing services) under several properties and new manholes installed. You can also see how technology helps reduce time and effort as a specialized welding machine is used to connect several lengths of pipe (max length per pipe is 12 meters) to enable a 40 meter thrust from one new manhole to another. Once this is complete several new connections are to be installed into the up-stream manhole into which a new private storm water line and three type2 cesspits for a common driveway will discharge into.

Once all the internal benching is done a council survey inspection will take place allowing the new subdivision to progress with plan and build.

Drainage NZ provide a range of ALC services. For more information please call 0800 DRAINLAYER.

How To Install A Drainage Channel

how_to_install_drainage_channelDrainage channels are vital systems to any property to ensure surface flooding does not occur during wet seasons and due to other reasons where surface water builds up on the land. They prevent flooding of driveways, gardens, lawns and yards.

How do you install a drainage channel? Drainage channels are not particularly difficult to install provided you have the equipment and know how to do the job. We will provide basic steps to installing a drainage channel here.

Step 1.
Before beginning, make sure that  there is sufficient slope in the paving to ensure the water will run and be removed from the property. The channel should not be installed along the line of the vehicle wheel travel. Dig the trench for the channel, allowing sufficient room for the channel to be installed. Generally you will want 50mm of compacted sandbase under the channel and 100mm on each side for concrete backfill.

Step 2.
A leak control flange will now need to be installed into the bottom of the trench. The wet area should now be fully “tanked”.

Step 3.
If using PVC channel, cut to the required length and allow  5mm for the stop ends. Attach the stop ends and the spigot to the bottom of the channel.

Step 4.
Now it’s time to sit the channel into the trench you dug. Use leveling compound to ensure that the installation is level and at the appropriate height. It is generally recommended to have the PVC channel 1-2mm below the final height of the floor surface. Stainless channels can be installed level with the floor surface.

Step 5.
You can now backfill the trench with the cementitious compound. Ensure that the sub-tile moisture flow is not blocked from the leak control flange.

Step 6.
The floor can now be finished by laying down your chosen finishing surfaces such as tiles. Depending on the channel used, it is advised to lay a bead of silicone alongside or on top of the channel.

Step 7.
Now you can cut the grate to size and install it into the channel. Ensure that the cut is square and gently file back rough edges for safety and a clean look. It is always recommended to cut the grate a few millimeters shorter than the channel so that it can be easily removed later for cleaning.

 

 

 

 

Stormwater Drain Solutions By Drainage NZ

Stormwater drainage is an intergral part of any property and is crucial to prevent damage and long term issues from occurring. Drainage NZ can help you to find the stormwater drainage solution you need for your property.stormwater_drains

What can we help you with? Drainage NZ can assist you in the following areas of stormwater drainage:

  • Soak holes
  • Charged stormwater systems
  • Rain and water tanks
  • Stormwater treatment systems
  • Surface water management
  • Pumping solutions and chambers
  • And more

Drainage NZ have been involved in many stormwater drainage projects in Auckland including many council, construction and commercial projects. However, despite our extensive portfolio, no job is too small! We can help you with all residential stormwater no matter what size the job is.

We will apply our expertise to your job to ensure that you have the best possible stormwater solution for your property. To talk to us about your plans, simply call us on 0800 372 465 or visit our residential stormwater drain solutions page.

When Was The Last Time You Had Your Drains Inspected?

Drainage systems can go for years without issues. But they can also slowly build up issues and one day, without sign, they go pop! This can be very hard to predict, and can hit you with a nice, substantial bill when it happens.

What can you do to ensure that there isn’t a problem building up in your drainage system?

CCTV_drainage_inspectionsGetting your drains regularly inspected with CCTV will tell you what condition your pipes are in, if there is any damage or any blockage building up. You will also see if the pipes are starting to break down. This will give you a clear indication of what’s going on in there, and anything you should be wary of. Always remember that it is cheaper and less stressful to pick up a problem before it happens!

CCTV inspection is also necessary if you have a leak or blockage before any work is done because it tells you what the issue is and how to tackle it.

We at Drainage NZ can help you to inspect your drains whether you just want to make sure all is ok or you have a problem. Speak to us today!

What Can A Drainlayer Do That You Can’t?

When looking at doing drainage work, you may be thinking that it’s just a simple case of digging a to ditch and putting the pipe down and putting the dirt back on top.  So why can’t you just do it? In reality, there is a lot more to drainage then may first be obvious.

drainlayers_aucklandDrainage systems need to be carefully planned so that they work correctly. The size of pipe, gradient of slope and even pipe material are all factors that need to be carefully considered for each job and will depend greatly on a number of factors including what the pipes will be carrying.

Then there is the job of the actual installation. The pipes need to be carefully connected and sealed to ensure that the installation will last the test of time. They need to be placed correctly so that waste water will flow enough to efficiently drain from the property. And care must be taken so that nothing is damaged upon putting everything back or building on top/next to the pipework.

A skilled drainlayer will spend years perfecting his skill and knowledge in installing drains. It’s not something you can just learn in a weekend. The technical aspects of the work require years of study and experience to memorise and apply in the field.

Why Do You Need A Specialist For Sewer Work And Repairs?

sewer_repairs_and_installationsIf you have an issue with a sewer and need a repair or are looking at installing a system, you may be asking why you need a specialist to do it. After all, if you are a handy man (or woman), can’t you just do it yourself?

Sewer systems are very important to do correctly because of the nature of disposal water that they carry. Sewer can post risks to people’s health, the environment and life style, so it is very important that correct planning and installation or repair is carried out, following local and national regulations.

With something like sewers, you don’t want to take a risk. We at Drainage NZ have over 25 years experience in drainage, being, ensured, and fully qualified to tackle any repair at hand. We have built and repaired many drainage systems across Auckland and can provide the solution you need, making sure that your system is sorted quickly, efficiently and to the highest standard. Don’t take a chance with something so crucial as sewer, call a professional and get it done right the first time!

 

We Provide Commercial Stormwater Solutions

commercial_stormwater_drainage_systemsCommercial stormwater systems are highly sensitive systems that require a lot of planning, engineering and calculations to ensure that systems are correctly installed and operate as they should. Incorrectly installed commercial stormwater can cause considerable damage.

Drainage NZ are specialists in the commercial drainage field, being in the business for over 20 years experience. We have been involved in a number of commercial stormwater installations and repairs jobs in Auckland, providing the solutions needed for various businesses and commercial properties.

Stormwater drains are important both during construction and afterwards. During contruction, stormwater drainage is needed to keep water clear from the work space allowing work to be done. It is often used around foundations, retaining walls, footpaths and driveways. However, there are various regulations that need to be met with stormwater drainage. Stormwater catchment applications must be managed and discharged to approved points of outfall. These points include natural streams, public stormwater connections, soak holes, detention tanks and pumped solutions. In New Zealand all subsoil drainage must be treated before discharged into a public system.

If you are needing to setup or construction a stormwater drainage system, consult us today for the assistance you need to get it done.

 

We Are Your New Drain Installers In Auckland!

Are you in need of a new drainage system? Are you building a new home and need a system designed and installed? Drainage NZ is your one stop solution to all new drainage in Auckland!

new_drainage_installers_aucklandDrainage NZ specialize in the design and installation of all drainage systems, be it stormwater, subsoil, driveway channels or council drainage work. We have over 20 years experience in the drainage field, making us not only knowledgeable in the field but also well known when it comes to drainage work.

Our expert team of drainlayers are able to work with your requirements and design a new drainage system that will perform and last the test of time. Whether you are building a simple family home or a multi-story building, it is no match for our team!

If you’d like to start working on your new drainage system, give us a call today on 0800 372 465.

Mouldy Walls During Winter Days?

Are you finding that your walls are getting wet and mouldy during the winter season? Many properties in Auckland were built with a habitable layer below ground level, and this can cause drainage problems if not constructed correctly leading to wet and mouldy walls. If you find yourself with the problem, what do you do?

mouldy_wallsWet walls are a result of improper subsoil drainage around the building, which means that the drainage needs to be either repaired or replaced with a proper system for it to work correctly. Most often the subsoil system needs to be excavated, removed and replaced. If there is no drainage system, a new one will have to be installed.

Drainage NZ are specialists in basement flooding problems and offer affordable subsoil drainage solutions to ensure that you do not have to live with wet and mouldy walls. Talk to us today about getting rid of your mould!

My Stormwater Is Flooding, What Do I Do?

Flooding stormwater drains are a fairly common problem and can be a real pain. Not only does the flood cause inconvenience but it can also cause damage as well. So what should you do if you see a flood, and what can you do to prevent it in the first place?

stormwater_drains_blockedFirstly, if you already have a flood on your hands, it is too late to take proactive action to prevent it. You need to find the cause of the problem. Stormwater drains often get blocked by leaves, sand, dirt and mud. They are usually washed into the drain during rains and storms, which is normal. If you have a blockage, more often then not it’s a simple case of just unblocking the drain, it’s just important to pick it up and get it done as soon as possible to prevent property damage.

It is also possible that a blocked stormwater drain is caused by damage in the drainage system. This can be found by doing a CCTV inspection, and will most likely be the case if unblocking does not solve the problem.

In order to prevent the drain from flooding in the first place, regular maintenance and checking is the first step. Always make sure that drain is clear and there is no build up or dirt, leaves etc. Also always check after heavy rain or storm to ensure that a blockage has not started to build up.