Spa Flow Rate Calculator
This calculator helps you determine the appropriate flow rate for your spa, ensuring optimal water circulation and filtration for a clean and enjoyable experience.
Calculate Flow Rate
.spa-flow-calculator {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
border-radius: 8px;
max-width: 500px;
margin: 20px auto;
background-color: #f9f9f9;
}
.spa-flow-calculator h2 {
text-align: center;
color: #333;
margin-bottom: 15px;
}
.spa-flow-calculator p {
text-align: justify;
color: #555;
line-height: 1.6;
margin-bottom: 20px;
}
.calculator-inputs {
margin-bottom: 20px;
}
.input-group {
margin-bottom: 15px;
display: flex;
flex-direction: column;
}
.input-group label {
margin-bottom: 8px;
font-weight: bold;
color: #444;
}
.input-group input[type="number"] {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1em;
box-sizing: border-box; /* Ensures padding doesn't affect width */
}
.input-group small {
font-size: 0.8em;
color: #777;
margin-top: 5px;
}
.spa-flow-calculator button {
display: block;
width: 100%;
padding: 12px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 5px;
font-size: 1.1em;
cursor: pointer;
transition: background-color 0.3s ease;
margin-top: 10px;
}
.spa-flow-calculator button:hover {
background-color: #0056b3;
}
.calculator-result {
margin-top: 20px;
padding: 15px;
background-color: #e7f3ff;
border: 1px solid #b3d7ff;
border-radius: 5px;
text-align: center;
font-size: 1.2em;
color: #0056b3;
font-weight: bold;
}
function calculateFlowRate() {
var spaVolume = parseFloat(document.getElementById("spaVolume").value);
var turnoverTime = parseFloat(document.getElementById("turnoverTime").value);
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous result
if (isNaN(spaVolume) || isNaN(turnoverTime) || spaVolume <= 0 || turnoverTime <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for spa volume and turnover time.";
return;
}
// Formula: Flow Rate (GPM) = (Spa Volume in Gallons * 60 minutes/hour) / Turnover Time in hours
var flowRateGPM = (spaVolume * 60) / turnoverTime;
resultDiv.innerHTML = "Required Flow Rate: " + flowRateGPM.toFixed(2) + " GPM (Gallons Per Minute)";
}