I even managed to get the cover with one broken lifter out, by putting the hoist on the other lifter then levering like mad at the end with the broken lifter so both ends started to rise. Once the cover had come up a bit then the 'good' end was able to lift clear, and I could hault the whole thing sideways and slide it along the drive. Managed to break the 'good' lifter though. Convertible manhole covers. These covers allow you to convert a drainage hole from one shape to another. IE. Circular drain to a square manhole cover or visa-versa. With a 450mm diameter, this Recessed Square-to-Round Manhole Cover from Wrekin can withstand a slow-moving wheel load of up to 2.5 tonnes. Its unobtrusive design removes the need to cut paving slabs around the circular opening. Both the frame and cover are made from galvanised mild steel to BS EN ISO 1461. The internal joints of the regulating masonry and the frame should be trimmed, tidied and pointed as usual, and then the external joints smoothed, although no great deal of neatness is required. Solid top manhole covers. These include cast iron, plastic or steel covers but they all have a solid top.

Manufacture: ISO9001 Quality system. F.A.C.T.A. (Fabricated Access Cover Trade Association) member. After a mamoth rodding session (with lots of "I don't remember eating that") the drains are now clear again. I bought myself some new plastic drain rods which I think was a wise investment as my old bamboo ones are well past their "use by" date. Note also the lifting eyes. These usually comprise a steel bar cast into a a small rebated area of the cover. In many cases, the rebate is filled with accumulated detritus and/or the steel bar has rusted away to nothing. If the lifting eyes are not suitable for use, then the cover will have to be removed by other means. If your latest drainage project requires a manhole cover and frame, we’ve got you covered here at Selco. We’re sure you’ll find what you’re after whether you need manhole accessories for commercial or domestic use.As well as manhole covers, we have some manhole accessories to help you complete your drainage jobs to the highest standard. Our selection of manhole keys and drain cover lifters will help to lift manhole covers with ease. We also have water stop tap covers and frames, surface box covers, grid replacements and more.

I now have an engine hoist with an iron bar across inside loops (to make sure the lift is vertical at each key) - it is only a relatively thin iron bar, about 12mm, but it is bending and there is no sign of the manhole cover moving. Clear as much sand as possible from inside the groove, then clear some more from outside the plastic frame so it will flex, then get some hefty screwdrivers down the edges to lever up. This movement coupled with the hoist gets everything out eventually.The lifting keyways provided for this recessed manhole cover are reinforced as standard. This helps avoid distortion resulting from lifting the cover during its use. Standards & Certification Once the level and alignment are correct, the frame can be haunched in place with additional mortar, which should cover the entire flange of the frame, but only extend up the side of the frame by 20-30mm, as sufficient room needs to be left to fit the paving or surfacing around the completed Tray and Frame. A Class II mortar should be used (roughly 4:1) with a plasticiser to improve workability. There is no need to add a waterproofer or a hardening agent. Reseating a Crown Unit of this size will use more or less a 'full-bag mix' of mortar - that is, a full, 25kg bag of building sand, with 6-8kg of cement (Sulphate Resistant [SRC] is best, but Ordinary Portland [OPC] will be satisfactory) along with water and plasticiser. The mortar is spread along the top of the chamber sections, and tidied along the internal edge to reduce the amount of mortar that will fall into the chamber when the Crown Unit is dropped into place. Manhole covers need to sit comfortably over the hole they’re covering so you need to measure the inside dimensions of the hole, not the manhole cover itself. This measurement must be taken in millimetres for accuracy and because that’s the standard unit for manhole cover manufacturers. Once you have this measurement you can shop confidently for recessed manhole covers.