How Rainwater Harvesting and Tank Lining Works Together

Published: July 30, 2025

In the past few years we have all become more eco conscious surrounding how we go about our daily lives. We are now being more sustainable in everything we do, from recycling more, to using more sustainable energy options which uses wind or solar energy.

So of course, in the UK where we have on average between 800mm – 1,400m of rainfall it makes sense that we collect rainwater as a practical, sustainable solution.

While installing collecting systems is a strong start, the real magic happens when you pair them with tank linings that keep your stored water clean, safe and compliant.

In this blog post we will be breaking down why rainwater makes sense in today’s climate, the hidden risks behind unlined and degraded tanks and how modern lining systems can help you build a more sustainable operation.

Rainwater is making a comeback

Let’s be honest, water isn’t getting cheaper. With rising utility bills and increasing pressure to meet sustainability targets, it’s no wonder many organisations are looking at rainwater harvesting as a viable way to reduce demand on mains supply.

By collecting rainwater, you can use it for non-potable reasons such as:

Irrigation (For example to aid in the growing of crops and other plants)
Toilet flushing
Laundry
Vehicle Washing
Other industrial processes

Reusing rain water is such an eco-conscious way to reduce water by the mains, will help cut energy bills and will also build resilience during those dry periods, in particular summer.

Tank Lining and Why it Matters

It’s great that you’ve now collected the rain water. However now it must be stored safely in a tank. Not only does your tank need to be in top quality condition, it needs to be lined too. Over time tanks can suffer from the following, which can then put your collected rain water at risk:

Corrosion
Leaks
Cracking
Microbial Contamination

If your rain water becomes contaminated then you cannot safely re-use the water. A professionally lined tank that is WRAS-approved and chemical resistant not only extends the life of your tank, it also ensures your collected water remains safe.

At ES Water Solutions tank lining is our bread and butter. Check out our Commercial Tank Lining page to see what we can offer you.

Signs your Tank Needs Re-Lining

Before you even begin to collect your rain water, it is best to check the tank you already have, to see if it’s fit for purpose. The common warning signs that your tank needs re-lining are:

Water that smells or is discoloured
Visible cracks or rust
Water levels fluctuating
Difficulty maintaining water quality
Water seepage around the base of the tank

Do not ignore these issues, as these can cause serious problems later. Contact us if you need help with Tank Lining.

Conclusion

In this blog post we discussed the amazing uses for rainwater harvesting and how you can use it to save money. We spoke about how you can safely store your collected rainwater, and what to do if your tank needs to be re-lined.

Ross St John

14:43 23 Aug 24

Great Company to use, very efficient and detailed. Highly recommend

Anjo

05:29 22 Jul 24

We manage a large residential block and recently reached out to Echo to quote to reline two water tanks that were failing. An absolute fantastic service all round. A quote was received within a day or so. Works were booked in and communication was excellent. We were really impressed with the engineers on the day. They communicated well on the day in terms of the plan of action. Once the work was complete, they ensured all areas were left clean and tidy. A follow up report post works was sent very soon after the works.

We look forward to working with Echo again. If you need honest, reliable contractors who will get the job done and to a high a standard, don't hesitate to get in touch with them.

Thank you.

Shaun Medlin

08:38 13 Aug 23

I contacted Echo Square on behalf of a client of mine who urgently needed her Victorian underground Cistern re lined. The work was quoted for promptly and the work carried out to a high standard by the engineers who were courteous and friendly despite their long drive to site. My client was very impressed and so grateful to have her Cistern back in working order. I would highly recommend this company and will most definitely approach them again should I have another client with tank issues in the future. 5 star service!

Terry Stevens

15:03 27 Jan 23

Echo Square attended site after we water jetted a concrete tank, they tank lined the entire tank in just a few days, fantastic job

Jessica Neil

08:01 14 Jun 22

Echo Square Services team assisted in helping with the refurbishment of two very difficult to access steel water tanks located at a VIP client’s head office.

Their team did a fantastic job.

I was especially impressed by the comprehensive photo report at the end.

Highly recommend!

Laurence Green

11:05 13 Jun 22

** Highly Recommended!**

Echo Square Services were assigned to reline two cold water tanks at a presdigious Law firm in Farringdon. The job was carried out successfully and on time with zeor disruption to the business operation. James and his team were a pleasure to work with, taking extreme care with all aspect of communication, health and safety and workmanship.

Thank you James and the team!!

Rae Nunn

13:17 26 Feb 19

Having used other companies in the past I can wholeheartedly say that our dealings with Nationwide Tank Relining have been a breath of fresh air. We have had tanks relined, water hygiene assessments and floor coatings. All work was carried out in a timely manner and the quality of work has each and every time been exemplary. My bosses are thrilled with my decision to switch to Nationwide Tank Relining and a tank that was relined 10 years ago by them still looks good as new internally, and the money we've saved from choosing the right supplier has proven to be a very smart business move. Highly recommended!