1.0HomeGnomehttps://homegnome.com/blogRaven Wisdomhttps://homegnome.com/blog/author/raven-wisdom/rich600338<blockquote class="wp-embedded-content" data-secret="fFJXfHHTOr"><a href="https://homegnome.com/blog/pool-care/why-is-pool-green/">Why Is My Pool Green?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://homegnome.com/blog/pool-care/why-is-pool-green/embed/#?secret=fFJXfHHTOr" width="600" height="338" title="“Why Is My Pool Green?” — HomeGnome" data-secret="fFJXfHHTOr" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://homegnome.com/blog/wp-includes/js/wp-embed.min.js </script> https://homegnome.com/blog/wp-content/uploads/2025/06/green-pool.jpeg1200800Pool water turns green primarily from algae, which grows when chlorine levels are low or water is stagnant from lack of circulation. Water can also turn green from heavy use and high concentrations of chemicals.