How to Monitor RO Filter ΔP Without a SCADA System: A Simple Google Sheet Approach

Are your RO system operators still checking differential pressure (ΔP) manually every day?
It may seem routine:
Check the inlet pressure.
Check the outlet pressure.
Do the math.
Log it in a notebook or Excel file.
And if someone forgets — membranes may foul before anyone notices.
This is still the reality for many water treatment or desalination O&M teams.
At JD Filtration, we believe monitoring pressure drop shouldn’t be complicated.
You don't need to invest in expensive SCADA systems to make smarter decisions.

The problem with manual ΔP tracking:
    It’s time-consuming
    It relies on human memory
    There’s no real-time alert
    It leads to late filter replacement — and risks RO membrane fouling
 
Our solution: A smarter Google Sheet
 
We designed a plug-and-play pressure drop monitoring sheet that:  
     Automatically calculates ΔP
     Compares readings with the safe limit based on filter type
     Highlights rows when the value exceeds threshold
     Triggers email alerts with Zapier (optional setup)

It works for:
    Melt-blown cartridges
    High-flow pleated filters
    String-wound filters
    And any custom ΔP threshold

 What do you need?
    Just a free Google account
    Basic pressure gauge data input
    (Optional) Zapier account for auto email alerts.

No login systems. No sensors.
Just smart use of tools you already have.

Who benefits most?
    Engineers responsible for daily RO monitoring
    Maintenance teams managing multiple filter trains
    Technical Directors who want early warnings before membrane damage
    Procurement staff needing proof of actual filter lifespan

Want a copy of this tool?
We offer this template for free to our clients and connections.
Contact us to receive:
    The editable Google Sheet template
    Setup instructions
    A sample filter DP threshold reference table