Buckingham Township sits in Bucks County, Pennsylvania, and like many semi-rural townships in the region, it relies on a mix of public water systems and private well infrastructure. Most multi-unit residential properties - apartment complexes, townhome communities, and mixed-use developments - receive a single master meter reading from the water authority or utility. The property owner or management company then pays one consolidated bill and distributes that cost across tenants, typically through flat fees embedded in rent or a simple per-unit split. Neither method reflects what any individual tenant actually consumed.
The practical consequence of master-meter-only billing is predictable: residents have no financial incentive to reduce consumption. When water costs are shared equally regardless of individual use, a tenant running full dishwasher loads twice a day pays exactly the same as the neighbor who showers quickly and runs a single faucet. Studies of apartment communities that switched from flat-fee to individual billing consistently show a 15 to 30 percent reduction in total water consumption after the switch - not because people are forced to conserve, but because they can see and respond to their own usage data.
Pennsylvania law addresses this directly. Under the Pennsylvania Public Utility Commission (PUC) regulations, a landlord who charges tenants for water service separately from rent is classified as a "reseller" and must comply with specific billing requirements. This includes providing itemized bills, charging no more than the landlord's actual cost per unit of water (no markup is allowed), and disclosing the billing methodology in the lease. Buckingham Township properties that use submetering must also comply with Bucks County plumbing codes for any new meter installations, and all metering equipment must be calibrated and certified for accuracy.
For property owners, the financial case for submetering is straightforward. A typical garden-style apartment complex with 50 units in Bucks County might have a combined water and sewer bill between $3,000 and $6,000 per month depending on the season. When that cost is built into flat-rate rents, the owner absorbs all of it directly or buries it in overhead. Submetering shifts the variable portion of that cost to tenants in proportion to their actual use. Initial installation costs for a 50-unit building typically run between $8,000 and $20,000 depending on the existing plumbing configuration and the technology chosen - a payback period that usually falls within two to four years in communities where water rates are at or above the Bucks County average.
The mechanics of a submetering installation require a licensed plumber to install individual meters on the cold-water supply line to each unit, typically in the utility room, crawl space, or at a meter pit location. In older construction where pipes are shared in walls, remote reading technology (described below) becomes important. Each submeter reads in gallons or cubic feet, communicates usage data to a central data collector either through radio frequency transmission or wired pulse output, and that data feeds into billing software operated either by the property manager or a third-party billing company. The tenant receives a monthly statement showing their consumption and a corresponding charge based on the master meter rate plus any applicable administrative fees.
A water submeter is not simply a smaller version of a standard utility meter. The hardware choice affects accuracy, installation complexity, maintenance requirements, and long-term data reliability. In a Buckingham Township property, the most common submeter types are positive displacement (PD) meters and single-jet meters, both of which measure flow through mechanical movement of a piston or impeller. For standard residential use - toilets, showers, dishwashers, washing machines - either type performs reliably. The minimum accuracy standard in Pennsylvania is plus or minus two percent across the normal flow range, and reputable submetering vendors supply meters certified to AWWA (American Water Works Association) standards.
Meter reading technology has moved far past manual inspection. The dominant systems currently deployed in Pennsylvania multifamily properties use one of three data collection methods. The first is Automatic Meter Reading (AMR), in which each meter transmits a radio frequency signal that a technician collects by walking or driving past the property with a handheld or vehicle-mounted receiver. This reduces labor compared to visual reads but still requires periodic site visits. The second is Advanced Metering Infrastructure (AMI), a fully networked system where meters transmit data continuously or on a set schedule to a fixed gateway on the property, which then pushes data to a cloud-based portal. AMI systems allow daily or even hourly consumption monitoring, which is valuable for catching leaks quickly. The third option is a wired pulse-output system, where each meter sends an electrical pulse to a central data logger for every fixed unit of flow - commonly one pulse per gallon or per tenth of a cubic foot. Wired systems are more reliable in environments with radio interference but require conduit runs during installation. A growing segment of the market - system providers like Mainlink - bundles ultrasonic meters, gateway hardware, and a cloud platform into a single package, which shifts the conversation away from choosing components separately and toward evaluating the system as a whole. The tradeoff is that the property owner or their RBC contractor handles installation independently, so having a qualified local plumber lined up before procurement matters.
Leak detection is one of the most underappreciated benefits of submeter data. A running toilet in a single unit can waste 50 to 200 gallons per day without the occupant noticing. With AMI or pulse-output logging, an unusually high overnight flow rate (when normal consumption should be near zero) flags automatically. Property managers using these systems report that identifying and repairing just one or two toilet leaks per year can recover costs equivalent to the monthly billing service fee. In Buckingham Township, where sewer charges are often calculated as a percentage of metered water consumption, a chronic leak in one unit inflates not just that unit's water bill but the entire property's sewer assessment as well.
Billing software connects meter data to tenant statements. Most third-party submetering companies operate proprietary billing platforms that ingest usage data, apply the current utility rate (updated each billing cycle to match the master bill), calculate individual charges, and generate PDF or online statements. The landlord receives a reconciliation report showing total metered consumption versus the master bill, confirming that all water has been accounted for. A small percentage of unmeasured water - called "loss" or "common area usage" - typically appears on these reconciliations due to irrigation, pool maintenance, laundry rooms, or line losses in older plumbing. Pennsylvania PUC rules require that landlords not pass this loss directly to tenants as a surcharge; it must either be absorbed by the owner or allocated through a documented and disclosed methodology such as RUBS (Ratio Utility Billing System), which distributes costs by unit size or occupancy count rather than by actual measurement.
RUBS is worth addressing separately because it is often confused with submetering but is legally and technically distinct. RUBS requires no hardware installation and allocates the master bill across units using a formula. It can be implemented immediately and has lower administrative complexity, but it does not produce individual consumption data and does not achieve the same conservation impact as true submetering. Pennsylvania PUC regulations treat RUBS as an allocation method rather than a metered billing method, and the disclosure requirements in leases differ accordingly. For Buckingham Township property owners deciding between RUBS and submetering, the practical question is usually about building age and plumbing configuration: older properties with shared riser lines may face prohibitive retrofit costs for individual meters, making RUBS a reasonable interim step, while newer construction with accessible individual service lines makes submetering straightforward.
