Water Horsepower Calculator - Pump Calculation

About This Tool:

Here you can calculate Water Horsepower online by using this free Water Pump Horsepower calculator tool.

Formula:

Horsepower, Water = (Flow * Head) / 3960

Water Horsepower Calculator

Flow :	gpm
Head :	ft
Horsepower, Water	whp

Related Calculators:

• Motor Horsepower Calculation
• Brake Horsepower Calculation

Surface Loading Rate (SLR) Calculator | Surface Overflow Rate

About This Calculator:

Calculate SLR in waste water using this free surface loading rate or surface overflow rate or surface settling rate calculator tool.

What is Surface Loading Rate?

The SLR (surface loading rate) is the number of gallons of waste-water passing over 1 square foot of tank per day. This is factor is also referred to as the "surface overflow rate" or "surface settling rate".

Surface Loading Rate Formula:

SLR or Surface Overflow Rate gpd/sq ft = ( Flow, gpd / Area, sq ft )

Surface Loading Rate Calculator

Flow :	(gpd)
Area :	(sq ft)
Surface Loading Rate (SLR):	(gpd/sq ft)

Related Calculators:

• Backwash Water Calculator

• Filtration Rate

• Water Calcium Hardness

• Total Hardness as CaCO3

• Composite Sample Single Portion Calculator

Total Hardness as CaCO3 Calculator - Calcium and Water Hardness

Calculate total hardness as CaCO3 using calcium and water hardness calculation.

Formula:

Total Hardness, as CaCO3/L = (Titrant Volume * 1000) / Sample Volume

 Only when the titration factor is 1.00 of EDTA

Units:

Hardness, as mg CaCO3/L : mL
Sample Volume : mL
Titrant Volume : mL
EDTA: Ethylene-dia-minetetra-acetic

Total Hardness as CaCO₃ Calculator

Titrant Volume :	mL
Sample Volume :	mL
Total Hardness as CaCO3 / L	mg

Composite Sample Single Portion Calculator - Wastewater Proportion Test

Calculate composite sample single portion using waste water proportion test.

Formula:

Composite Sample Single Portion = (Instantaneous Flow) (Total Sample Volume) /
                                                              (Number of Portions) (Average Flow)

Composite Sample Single Portion Calculator

Instantaneous Flow :	gpm
Total Sample Volume :	gal
Number of Portions :
Average Flow :	gpm
Composite Sample Single Portion:

Chemical Metering Pump Feed Rate Calculator

Chemical Metering Pump Feed Rate Calculator

Formula:

GPH = (GPM x .006 x PPM) /  % Concentration x S.G.

Where,

• GPM = flow to be treated.
• .006 = Constant.
• PPM = Dosage required.
• % Concentration = Concentration of chemical in pumped solution
• Use full number (15% solution is [15] in formula not (.15)).
• S.G. = Specific gravity at pumped solution. 

---

GPM :	m3/h
PPM Dosage :	mg/l
Concentration of Chemical:	%
Specific Gravity at Pumped Solution:
Gallons Per Hour (GPH)

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Example:

2% solution is required for pumping a 55 gallon feed tank is in use and 12% chemical is available.

 55 x 2
 -------- = 9.17 gal. chemical to 45.83 gal. water in tank
    12

Related Calculators:

• Chlorine Dosage Calculator

• Backwash Water Calculator

Backwash Water Calculator

Online Filtration calculator calculates Backwash Water.

Formula : Backwash Water = Backwash Flow * Backwash Time

Backwash Water Calculation:-

Backwash Flow:		gpm
Backwash Time:		min
Backwash Water:		gal

Unit Filter Rate Volume (UFRV) Calculator

Unit Filter Rate Volume (UFRV) calculator. Online water calculator calculates Unit Filter Rate Volume of liquid(water).

Unit Filter Rate Volume Formula:-

• Unit Filter Rate Volume (UFRV) = Filtration Rate * Filter Run* 60 min/hr

Unit Filter Rate Volume Calculation:-

Filtration Rate:		gpm/sq ft
Filter Run:		hr
Unit Filter Rate Volume (UFRV):		gal/ft2

Filtration Rate Calculator

Filtration Rate Calculator. Online water calculator to calculate Filtration Rate for traveling water through the filter.

Definition:-
Filtration Rate: The rate at which the water is traveling through the filter, expressed in U.S. gallons per minute (gpm) per square foot of filter area.

Formula:-

Filtration Rate = Flow / Surface Area

Filtration Rate Calculation:-

Enter Flow Rate:		gpm
Enter Surface Area:		sq ft
Filtration Rate:		gpm/sq ft

21 January 2013

Water Calcium Hardness Calculator

Online Calcium Carbonate CaCO3, Water Hardness Calculation. This calculator is used to find Hardness of salts in a water. Hardness is the measure of dissolved salts in alkaline water. To measure hardness, a water operator needs to know how many mL of ethylenediaminetetraacetic acid (EDTA) it would take to neutralize the salts. This allows you to determine how much hardness was neutralized. Hardness is also measured in mg/L of equivalent calcium carbonate.

Formula: Hardness (mg/L as CaCO₃) = (mL of EDTA X 1,000)/mL of sample

Enter EDTA Value  : mL

Enter Sample Value : mL

Hardness  : mg/L as CaCO3

Where,

• EDTA : Ethylenediaminetetraacetic acid

Example: A 100 mL sample is titrated with 0.02 M EDTA. The endpoint is reached when 18.2 mL of EDTA have been added. What is the hardness concentration?
 Hardness (mg/L as CaCO3) = mL of EDTA X 1,000/mL of sample
                                            = (18.2 X 1,000) / (100)
                                            = 182 mg/L as CaCO3

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