ZDS One of the worlds leading brands in submersible pumps. ZDS offer a no quibble guarantee........... shame your never need it with a ZDS submersible pump. There reliability is unstoppable and as mentioned makes them one of the leading brands in submersible pumps. We are proud to use and install them and there reliability and performance is by far one of, if not the best. Here’s what ZDS have to say "To our knowledge, ZDS is the only pump manufacturer that truly offers a "No Quibble Guarantee" on its entire product range." "Regardless of what problem you encounter, we will replace the product up until 24 months after purchase. We only ask that the products have not been tampered with and are returned complete, in one piece..." "ZDS submersible pumps are known for their unparalleled reliability, which is why we can offer our No Quibble Guarantee! They offer a unique combination of efficiency, motor burn out protection, easy maintenance and high resistance to abrasives, including that pernicious, ubiquitous enemy of all pumps – sand." "Enjoy our quality!" "ZDS knows your satisfaction comes from using, selling or installing pumps and not from pulling them back up again." How right they are and you will say the same when you own one or have ever worked with one. To see there product range and to read more please click HERE