I have been looking to see why the original Harrier Brookes and Gatehouse is no longer working. Well sadly there was a deck leak on top of it. Only a small one, but the battery inside has suffered an acid leak - it is a delightful bit of kit, and probably original, so it will be a shame to see it go. There is one good thing though, and the new depth sounder could have new features such a depth alarm and maybe even depths to decimal places. Keel offset would be handy too!