1.0Ultraminshttps://www.ultramins.com/enrich600338<blockquote class="wp-embedded-content" data-secret="qT1EGfg5zW"><a href="https://www.ultramins.com/en/testimonials/alex-vellekoop-duynplant-honselersdijk/">Duynplant - Alex Vellekoop - Plants - De Lier - Netherlands</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.ultramins.com/en/testimonials/alex-vellekoop-duynplant-honselersdijk/embed/#?secret=qT1EGfg5zW" width="600" height="338" title="“Duynplant - Alex Vellekoop - Plants - De Lier - The Netherlands” - Ultramins" data-secret="qT1EGfg5zW" 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://www.ultramins.com/wp-includes/js/wp-embed.min.js </script>https://www.ultramins.com/wp-content/uploads/sites/522/2021/08/Screenshot-2021-08-09-at-13.01.53.png946674Wij waren er tijdig bij met het plaatsen van de USAF ultrasone zenders en hebben zelfs na hele warme zomerse dagen amper algen in het bassin. (3.000m2) De aanwezige algen worden ook nog eens allemaal effectief gedood. De service van Ultramins was prima en betrouwbaar.