Uniformat D2020
Domestic hot water recirculation pump
Also called DHW recirc pump, recirc pump
Service life
Years in service. One stated life so far; the band will widen as sources are added.
Basis
- 15 years · CNA e-Tool Estimated Useful Life Table, p10 · HUD CNA 3.4.1.2.1 “DHW circulating pumps” — U.S. Department of Housing and Urban Development (planning life)Same life for family and elderly properties. US multifamily housing.
How sources are chosen and recorded: sourcing policy.
Municipal accounting lives for plumbing (D20)
14 municipal policies from Ontario set a life for plumbing as a whole, from 10 distinct tables: 15–50 years, median 26.3. These are amortization periods chosen for accounting, not measured lives, and they describe the system rather than this component.
Years. Each dot is one stated life and each bar a stated range; equal values stack. The dashed line is the median. Policies that copy the same table count once.
All 18 stated lives
| Municipality | As written | Years | Source |
|---|---|---|---|
| Kingston | Building Fixtures | 15 | p15 · 2016 |
| Meaford | Plumbing - Water Treatment System | 15 | p17 · 2020 |
| Trent Lakes | Mechanical Systems - Fixtures | 15 | p10 · 2009 |
| London | Building Components - Services (HVAC, lighting, communication, plumbing etc.) | 20 | p2 · 2023 |
| Meaford | Plumbing - Fixtures | 20 | p16 · 2020 |
| Meaford | Plumbing - Boiler | 20 | p17 · 2020 |
| Meaford | Plumbing - Septic System | 25 | p17 · 2020 |
| Rainy River | Building Improvements - Electrical/Plumbing | 25 | p11 · 2010 |
| The Blue Mountains | Septic System | 25 | p11 · 2019 |
| Bancroft, Centre Hastings, Hastings Highlands, Wollaston · same table | Electrical/Plumbing | 25–30 | p5, p4, p6, p5 |
| Greater Napanee | E30 Chillers, Rink Piping, Fuel Storage Tanks | 30 | p16 · 2012 |
| Grey Highlands | Septic System | 30 | p11 · 2026 |
| The Blue Mountains | Plumbing System | 30 | p11 · 2019 |
| Trent Lakes | Mechanical Systems - Piping | 30 | p10 · 2009 |
| Greater Madawaska, Quinte West · same table | Piping | 50 | p17, p38 · 2025 |
| Meaford | Plumbing - System | 50 | p16 · 2020 |
| Meaford | Plumbing - Cistern | 50 | p16 · 2020 |
| The Blue Mountains | Cistern | 50 | p11 · 2019 |
Each row was matched to its page automatically: the label and the number appear in the text of the cited page. An editor has not yet compared every row with the table, so follow the page link before relying on one. About the policies · All approved rows as JSON
Preventive maintenance
3 tasks in 3 work orders. Intervals that fall due together are one visit: the annual visit also covers the monthly tasks.
- 1Monthly
- 2Monthly
- 3Monthly
- 4Monthly
- 5Monthly
- 6Monthly
- 7Monthly
- 8Monthly
- 9Monthly
- 10Monthly
- 11Monthly
- 12Annual
Months from the schedule start. Daily and weekly rounds run in between. Download the tasks as CSV for a CMMS, or ask the MCP tool get_pm_schedule for dated visits.
Daily · 1 task
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, 9.9.11 Pumps Checklist
| Task | Page |
|---|---|
| Do an overall visual inspection: all equipment operating and safety systems in place | p231 |
Monthly · 1 task
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, 9.9.11 Pumps Checklist
| Task | Page |
|---|---|
| Check and secure all pump mountings | p231 |
Annual · 1 task
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, 9.9.11 Pumps Checklist
| Task | Page |
|---|---|
| Check motor condition by temperature or vibration analysis | p231 |
Frequencies are ISO 8601 durations in the data (P3M = every 3 months).
Open questions
- Only one source so far: HUD planning lives for US multifamily housing. Canadian and observed sources are needed.
Know the answer? Send it with a source to [email protected].
Cite this
Citation
unfinished.one (2026). Domestic hot water recirculation pump, v0.2.0. https://unfinished.one/c/dhw-recirculation-pump/v/0.2.0BibTeX
@misc{unfinished_dhw_recirculation_pump_0_2_0,
title = {Domestic hot water recirculation pump},
author = {{unfinished.one}},
year = {2026},
version = {0.2.0},
url = {https://unfinished.one/c/dhw-recirculation-pump/v/0.2.0},
note = {CC BY 4.0}
}Licence CC BY 4.0 · How to cite · JSON · Versions: 0.2.0, 0.1.0