Source: https://tendernation.io/opportunities/01a13c51-31c2-7099-a359-96738eab3b06/cefas20-05-rfq-water-treatment-system-and-seawater-mixingholding-system closed GB open procedure Suitable for SMEs # CEFAS20-05: RFQ: Water Treatment System and Seawater Mixing/Holding System [Defra Network eTendering Portal](https://tendernation.io/buyers/defra-network-etendering-portal) Often single bidder Estimated value £17,000 Published 15 Jun 2020 Deadline Closed 30 Jun 2020 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Requirement: - Water softening, dechlorination and RO production system to fill 200 L water holding and mixing tank for producing artificial seawater with ability to measure water quality (salinity, temperature and pH), plus 2x 200L circulating UV treated water storage tanks with taps. The system should be suitable for producing artificial sea water via the addition of sea salts with minimal manual manipulation. The system should be suitable for producing high quality RO water from hard tap water, which is used to fill a 200 L mixing tank suitable for dissolving sea salts (to salinity up to approximately 36 ppt) with the ability to measure water quality parameters (salinity, temperature, pH). There should be a pump in order to fill two 200 L storage tanks from the mixing tank each with UV treatment to ensure avoidance of algal growth. Each storage tank should have a tap to ensure easy removal of the prepared artificial sea water. The filling of each tank (mixing and storage) should ideally be controlled via a ballcock switch to avoid overflow. However, storage tanks should not automatically fill prior to addition of sea salts to the mixing tank up to the required salinity. The whole system will need to fit into an approximate 240 x 290 cm footprint. ## CPV classification Laboratory pumps and accessories Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/3374db74-99d2-4808-97ea-425d5f78d625) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Defra Network eTendering Portal: past awards and live tenders](https://tendernation.io/buyers/defra-network-etendering-portal) [Sector More Industrial machinery tenders](https://tendernation.io/sectors/industrial-machinery) ## More tenders like this [Lifting and handling equipment – Moyens de manutention motorisés · Union des Groupements d'Achats Publics · 57 days left · 15 Dec 2026](https://tendernation.io/opportunities/01a156a9-88ab-73d8-bf7c-44ba9139abc3/france-lifting-and-handling-equipment-moyens-de-manutention-motorises) [Lathes – Strung universal cu diametrul de prelucrare între Ø 320 ÷ Ø 380 mm · S Uzina Mecanica Plopeni SA · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a156a9-89ea-7222-a30a-79ce9a09d1c7/romania-lathes-strung-universal-cu-diametrul-de-prelucrare-intre-o-320-o-3) [Water pumps – ΠΡΟΜΗΘΕΙΑ ΑΝΤΑΛΛΑΚΤΙΚΩΝ ΓΙΑ ΤΙΣ ΥΠΗΡΕΣΙΕΣ ΕΠΙΣΚΕΥΗΣ ΤΩΝ ΥΠΟΒΡΥΧΙΩΝ ΑΝΤΛΗΤΙΚΩΝ ΣΥΓΚΡΟΤΗΜΑΤΩΝ ΥΔΡΕΥΣΗΣ · ΔΗΜΟΤΙΚΗ ΕΠΙΧΕΙΡΗΣΗ ΥΔΡΕΥΣΗΣ-ΑΠΟΧΕΥΤΕΥΣΗΣ ΗΡΑΚΛΕΙΟΥ (Δ.Ε.Υ.Α.Η.) · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-74e7-7383-82e1-b4c6885044d2/greece-water-pumps-promhthia-antallaktikon-gia-tis-yphresies-episkefhs-ton-y) [Miscellaneous special-purpose machinery – „Wood Vision Lab“ - das Technikum: "Absauganlage" · Wood Vision Lab GmbH · 8 days left · 27 Oct 2026](https://tendernation.io/opportunities/01a156a9-7ec8-7322-8445-8dcef4fed830/austria-miscellaneous-special-purpose-machinery-wood-vision-lab-das-tech) [Centrifuges – Centrifug och styrskåp - Hudiksvalls kommun · Hudiksvalls kommun · 2 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a156a9-8986-70b3-a08f-2e4ab5fe626c/sweden-centrifuges-centrifug-och-styrskap-hudiksvalls-kommun) [Machinery and apparatus for filtering or purifying water – Systém na přípravu ultračisté vody · Vysoká škola báňská - Technická univerzita Ostrava · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a156a9-8de7-7383-a6dd-5533ea57df0c/czechia-machinery-and-apparatus-for-filtering-or-purifying-water-system-na-p)