Shopping Cart (0)

Your shopping cart is empty!

Lloyd Thomas | Nevada Effluent Management Specialist

How To ‘Flood-Proof’ Your Effluent Management System

How To ‘Flood-Proof’ Your Effluent Management System

Your effluent management system needs to work for you 365 days of the year, so that means preparing for all kinds of weather. While extreme events can’t be predicted, it’s reasonably foreseeable in New Zealand to have storms, floods and large downpours at one time or another – some areas more than others! So here’s some best practice guidelines for how to ‘flood-proof’ your effluent management system…


It’s always better to have too much, than not enough. We always recommend having more than the minimum council requirements to allow for times where spreading is not an option, and rainfall is high. Should an extreme weather event occur, this also reduces the chances of you having a big effluent clean up to deal with.

Storm Water Diverter, Pipes & Systems

Having a storm water diverter is insurance should it ever be needed. Your storm water diverter should be large enough to handle more than just a heavy downpour. Further to this, the pipes leading the water away should be big enough to handle large intakes of water, and should lead to a storm water system that can handle the intake.

Plenty of effluent pond storage


Set aside some time to reduce effluent storage levels as much as possible before winter. You never know what the weather will bring, so it’s best to hope for the best and prepare for the worst. A Nevada RainWave™ Drag Hose System can be ideal for dropping pond levels fast and is a cost-effective investment. Maximising the amount of storage you have available gives you one less worry should you not be able to spread at all over the wet season.

Solids Separation

If solids separation is used, it may be worth considering a cover/roof for your solids storage area. This will reduce the chances of your solids becoming muck, or getting washed away during heavy rainfall.

Pond Design

Your pond should have a reasonable freeboard to allow for additional water levels during flood prone times.

Electric Motors

As we all know, electricity and water are not a great mix, so it’s best to have any electric motors on a plinth or something that keeps them above reasonable expected water levels.

Flood Pumps

If you are in a flood prone area, a flood pump could be of value to assist with pumping over stock banks.

Placement of electric motors

We use Nevada Fertigators on rolling country that we are not able to get our travelling irrigator to - and its opened up more areas of my farm. We’ve gone from 50 hectares of effluent irrigable land to 120. Basically it’s covering those hill faces and getting fertility back to where we haven’t had it.

Mike Marshall - Southland Dairy Farmer

Talk to a Nevada specialist today

Keen to find out more or get a price? No worries! Just leave us your details below and we'll get in touch...

If you're not in New Zealand, no worries!  We can help over the phone, or happy to jump on a video call.  Our equipment can be exported - to date it has made it's way over to Australia, USA and South America!

We are here for you.
Nevada products are high-quality and trusted by New Zealand farmers for safety and reliability. That is why all Nevada products are supported with a two year warranty, and backed by customer service that is second to none.
Farm Dairy Effluent System Design Accredited
Yes, We're Accredited!
Nevada are Farm Dairy Effluent System Design Accredited by Irrigation NZ! This means we've been assessed (and passed with flying colours) on our competency and skills in all the important things to provide you with top notch advice - read more here
Like what we're saying? Give us a share