Preliminary design tool

Plant Sizing

Start with flow. Finish with engineering. Estimate daily wastewater flow, apply an operating margin, and see the closest preliminary Hy-Series model.

Preliminary onlyFinal sizing also checks organic load, wastewater characteristics, site conditions, and discharge requirements.
Interactive calculator

Estimate your preliminary design flow.

Choose the closest facility type, enter its expected occupancy, then select a load profile. All allowances and Hy-Series capacities shown here are provisional pending Hy-Treat’s final technical approval.

Provisional allowance
Load profile / safety factor

Method: facility allowance × entered quantity × selected load factor. The smallest provisional model capacity covering the calculated flow is shown. Values must be reviewed before public release.

Preliminary selection
Hy-1
Base flow
Design flow
Load factor
Model capacity
What final sizing checks

Flow is the beginning—not the complete design.

01

Hydraulic load

Average flow, peak use, occupancy pattern, seasonal variation, and future growth.

02

Organic load

The pollution strength reaching the plant, including higher-strength commercial wastewater.

03

Site constraints

Excavation, access, groundwater, ventilation, levels, electrical supply, and service clearance.

04

Required outcome

Discharge destination, reuse objective, polishing, disinfection, and applicable requirements.

Prepare your inquiry

The better the input, the better the first recommendation.

Send the project location, facility use, expected occupancy, operating schedule, site dimensions, drawings if available, photographs, and the intended discharge or reuse route.

For an existing system, also include the current capacity, observed problems, emptying frequency, odor or discharge symptoms, and any available water-analysis results.

A preliminary number needs a real site review.

Send the calculated result with your project details and Hy-Treat will check the correct treatment route.

Request final sizing