Rainwater harvesting contractor and consultant —rooftop harvesting, recharge structures and water recycling

Scope

Scope of work

The system is sized from the catchment area and the local rainfall, and the choice between storage for reuse and recharge to ground follows from the site's water balance and the soil's infiltration. We design the collection network, the first-flush diversion and filtration, the storage or recharge structures, and the connection into the flushing or landscape supply where reuse is intended, and we supply and install the pipework, filters, tanks or recharge pits and the pumping where it is needed.

How it is delivered — and what you receive

The installation is documented for the building-plan sanction or completion certificate where the local authority mandates harvesting, and for the green-rating submission where credits are claimed. Filters are cleaned and the first-flush checked before the first monsoon, and the AMC repeats that every year. The client receives the harvesting layout, the sizing calculation and the compliance certificate.

Sources and standards

• IS 1172 (1993 (reaffirmed)) — IS 1172 — Code of Basic Requirements for Water Supply, Drainage and Sanitation. Bureau of Indian Standards. Publisher. Per-capita water requirements and sanitary provisions by building type.
• NBC 2016 Part 9 (2016) — National Building Code of India 2016, Part 9 — Plumbing Services. Bureau of Indian Standards. Publisher. Water supply, drainage and sanitation, and the per-capita demand basis.

Standards are cited to support the technical statements on this page. Where a standard has been revised, the edition shown is the one verified at the time of review; the edition in force for a project is the one the authority applies.

Before you ask us to quote: the Plumbing buyer's guide lists what to have ready, what drives cost and timeline, and the approvals that usually apply. Writing the tender? The plumbing & public health specification library has 4 code-referenced clauses architects and consultants can drop into tender documents.