Turnkey bathroom plumbing in Batumi: from outlet layout to fixtures

What the job includes and what other trades do

We price turnkey bathroom plumbing in Batumi for the whole bathroom: from the apartment's main valve to the fixture that is tested with water in front of you. The job includes the inlet assembly, the manifold, pipework to 4–6 points, the drains, built-in parts for concealed fixtures and fitting the sanitary ware after tiling. One crew handles the whole chain, so if there is a leak, you don't have to work out whose joint it is.

Screed, waterproofing and tiling are not part of this job: they are done between our two visits to the site. If we are renovating the whole bathroom, everything runs to one schedule, as in a full bathroom renovation. Old pipes in the rest of the apartment are replaced within the same job, and the procedure for replacing old pipework is described separately.

The outlet layout before the first pipe

We start with the layout: where each fixture goes, what outlets it needs and at what height. We take the heights from the specifications of the chosen model and from the tile layout. An outlet that lands on the edge of a tile can't be hidden under a cover flange afterwards, so concealed fixtures are chosen before the pipework.

For a wall-mounted mixer we set the two outlets at the same height, 150 mm between centres: the eccentric connectors of most wall-mounted mixers are made for this spacing, and they can't make up a large misalignment. We set the ends of the outlets to the plane of the future tiles, otherwise the cover flanges will sit crooked or won't reach the wall.

Manifold or tees

A tee system runs one pipe from fixture to fixture, while a manifold system gives each fixture its own pipe and its own valve.

We almost always fit a manifold, and in a rental apartment without exception. It takes more pipe and needs a recess with a hatch, so we keep tees for a compact bathroom by the riser, where all the joints fit inside boxing with an inspection hatch. We mark the manifold recess on the layout straight away, so that the hatch doesn't land on a large tile in the middle of a wall.

Inlet assembly and manifold under one hatch

Straight after the apartment's main valve we fit the inlet assembly: a ball valve, a mesh filter and a pressure reducing valve if the pressure is higher than the specifications of the mixers and washing machine allow. We usually set the reducing valve to 3 bar by the gauge: at this setting the shower and the washing machine run at the same time without a drop in pressure, and there is still a margin below the limit in the appliances' specifications. We write the figure on the diagram, so that there is something to compare against a year later. What further stages of filtration there are, from a filter housing to reverse osmosis under the sink, is covered in the section on water filters.

We put the inlet assembly and the manifold next to each other, so that one hatch gives access to the valves, the filter and the meters. If the inlet is at the riser in the bathroom, the recess goes in the riser boxing. If the inlet is in a recess in the hallway, we put the manifold in the bathroom behind its own hatch and run a single pipe without joints between them.

Drains: diameters, bends, water test

We connect the toilet with a 110 mm pipe, and the basin, shower, bath and washing machine with 50 mm pipes laid to a fall towards the riser. On horizontal runs we make turns from two 45° bends instead of one right angle: hair and grease catch on a sharp corner, and that is where a blockage starts. We leave an inspection opening where it can be opened without removing tiles.

Before closing up, we test the drains by running water: we pour water into each outlet in turn and watch the joints and how fast it drains away. You receive the result in the report, together with the pressure test of the water supply and photos of the pipe runs with measurements from the floor and corners, before the screed goes over the pipes.

Second visit: fixtures and commissioning line by line

Once the tiles are grouted, we come back to fit the fixtures: we hang the toilet, fit the basin, the concealed mixer trim plates and the bidet shower, and connect the washing machine. How each of them is fitted and what we check at handover is covered on the pages about fitting basins, mixers and toilets and about the installation frame.

We bring the system into service line by line. With all the manifold valves closed, we open the inlet, then one line at a time, and on each we check the joints at the fixture and in the manifold recess. This way a leak is immediately tied to one line, and there is no need to search the whole bathroom for it. At the end we fill and drain the bath, keep the shower running and look into the hatch once more.

Prices for turnkey bathroom plumbing in Batumi

Turnkey bathroom plumbing costs from 1,680 to 2,400 ₾ for labour: pipework to 4–6 points, a manifold and fitting the fixtures. Pipes, fittings, the manifold and the drains come to another 810–1,200 ₾ per bathroom, with fixtures extra.

If you only need part of the work, we price it line by line: fitting a manifold costs 270–360 ₾, and an inlet assembly with valves, a filter and a pressure reducing valve 190–240 ₾. The price goes up with concealed mixers, a second bathroom and fixtures moved away from the riser. A bathroom where the fixtures go onto the developer's outlets and the runs are short comes out cheaper. The final cost is set after the site measurement and once the estimate is agreed, and the price of a stage in the contract doesn't go up unless the scope changes.