Welcome to the Online Tank Store Knowledge Hub. Our expert guides cover water tanks, oil tanks, rainwater harvesting, break tanks, fittings and accessories to help you choose the right solution for your application.
Browse by topic
✓ Thousands of water tanks supplied throughout the UK
✓ Expert advice from experienced water storage specialists, backed by leading UK manufacturers
✓ Regularly updated to reflect current products and industry best practice
At Online Tank Store, we’ve helped thousands of customers find the right water storage solution for their home, farm or business. Whether it’s a rainwater harvesting system for a garden, a potable water tank for a new build, a baffled tank for a commercial vehicle or a large agricultural storage tank, our team helps customers choose the right product every day.
Choosing the right water tank isn’t simply a matter of selecting a capacity. Factors such as the intended application, available installation space, potable or non-potable use, outlet positions, fittings and future water requirements all need to be considered. We’ve created this Water Tank Buyer’s Guide to share the practical knowledge we’ve gained from supplying water tanks across the UK, helping you avoid common mistakes and choose the right solution with confidence.
Read the Complete Buyer's GuideDon’t have time to read the full guide? Below you will find quick, helpful articles to support your water tank purchase.
Our most popular water tank guides for customers looking to select, install and maintain a water storage tank.
Whether you’re applying for funding, have already secured a grant or are researching available schemes, we’ll help you understand the options available and connect you with products that may support your project.
Whether you’re a farmer, contractor, business owner or land manager, there may be funding available to support your next project. Our Grants & Funding Hub brings together information on government, environmental and industry funding schemes, helping you understand what’s available and discover the products we have that may support your project.
Our Grants & Funding Support Centre includes guidance on government grants, environmental funding, agricultural support schemes and business funding opportunities that may be relevant to projects involving water management, rainwater harvesting, storage, pumping, filtration and associated equipment.
Explore Grants and FundingPlease Note: The Online Tank Store provides product advice. We do not administer grants or determine funding eligibility. Always ensure the products you purchase meet the specifications of your approved grant.
Last Updated: July 2026
Funding approved?
Funding approved? Let’s find the right products
If you’ve secured funding through a government or industry scheme, our team can help you source the products required for your approved project.
Applying for a grant?
Need a quotation or product information?
Many funding applications require supplier quotations or product specifications. We can provide detailed quotations, technical information and advice to help you plan your project.
Browse available grants
Explore the latest government, environmental and industry funding schemes that may support your next project.
Why Use Online Tank Store?
