The WatrLevel requires only that the jug be placed within range of the anticipated high and low spots and that the tubing reaches all the areas you intend to measure. It doesn't even have to be level. This is because the level in the jug is transferred to the staff when you set zero. It should be noted however, that once you set zero, the jug cannot be moved or your reference point will move too. The WatrLevel comes in a box.
Water levels are notoriously difficult to pack away.
There's the jug and all the tubing to contend with. The box for the WatrLevel has been designed so the unit can be put away quickly and neatly. Just drop it in the box, close the lid, and carry it away by the handle. With the WatrLevel you can set up, take measurements, and pack up in seconds. The WatrLevel is designed such that the tubing is replaceable.