1.0Engineer News Networkhttps://www.engineernewsnetwork.com/blogrich600338<blockquote class="wp-embedded-content" data-secret="Ro4jYe69Gp"><a href="https://www.engineernewsnetwork.com/blog/uv-disinfection-keeps-spring-water-pure/">UV disinfection keeps spring water pure</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.engineernewsnetwork.com/blog/uv-disinfection-keeps-spring-water-pure/embed/#?secret=Ro4jYe69Gp" width="600" height="338" title="“UV disinfection keeps spring water pure” — Engineer News Network" data-secret="Ro4jYe69Gp" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! 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://www.engineernewsnetwork.com/blog/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://www.engineernewsnetwork.com/blog/wp-content/uploads/2017/11/P1030585_PR2-1024x576.jpg1024576Nirvana Spa in Berkshire is one of the UK’s most prestigious spa facilities, frequented by elite athletes and celebrities. The facility has a reputation for using crystal clear natural mineral water drawn from the same pristine source 700 feet beneath the spa. To maintain the purity of the water within each of its nine pools, …